cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
An effective quintessence field with a power-law potential
Creators: name: Khurshudyan, M.
name: Pourhassan, B.
name: Myrzakulov, R.
name: Chattopadhyay, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we consider an effective quintessence scalar field with a power-law potential interacting with a $P_{b}=ξqρ_{b}$ barotropic fluid as a first model, where $q$ is a deceleration parameter. For the second model we assume viscous polytropic gas interacting with the scalar field. We investigate problem numerically and analyze behavior of different cosmological parameter concerning to components and behavior of Universe. We also compare our results with observational data to fix parameters of the models. We find some instabilities in the first model which may disappear in the second model for the appropriate parameters. Therefore, we can propose interacting quintessence dark energy with viscous polytropic gas as a successful model to describe Universe.
description: 16 pages. Overlaps removed and References added
Semiclassical pair production rate for time-dependent electrical fields with more than one component: -WKB-approach and world-line instantons
Creators: name: Strobel, Eckhard
name: Xue, She-Sheng
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present an analytic calculation of the semiclassical electron-positron pair creation rate by time-dependent electrical fields. We use two methods, first the imaginary time method in the WKB-approximation and second the world-line instanton approach. The analytic tools for both methods are generalized to time-dependent electric fields with more than one component. For the WKB method an expansion of the momentum spectrum of produced pairs around the canonical momentum $\vec{P}=0$ is presented which simplifies the computation of the pair creation rate. We argue that the world-line instanton method of [Dunne et al., Phys. Rev. D73, 065028 (2006)] implicitly performs this expansion of the momentum spectrum around $\vec{P}=0$. Accordingly the generalization to more than one component is shown to agree with the WKB result obtained via this expansion. However the expansion is only a good approximation for the cases where the momentum spectrum is peaked around $\vec{P}=0$. Thus the expanded WKB result and the world-line instanton method of [Dunne et al., Phys. Rev. D73, 065028 (2006)] as well as the generalized method presented here are only applicable in these cases. We study the two component case of a rotating electric field and find a new analytic closed form for the momentum spectrum using the generalized WKB method. The momentum spectrum for this field is not peaked around $\vec{P}=0$.
description: 19 pages, 2 figures, V2: some passages shortened, importance of the location of the peak of the momentum spectrum clarified, final version to appear in Nucl. Phys. B
Brief an "Celimene"
Creators: name: Brockes, Barthold Heinrich
Publisher: name: [s.n.]
Year: 1746

description: von B[arthold] H[einrich] Brockes
description: Eigenhändiger Brief in Gedichtform mit Unterschrift und Adresse
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Deutsch
description: Verzeichnung=Description=Inventaire Juli 2018 HAN-Katalogisierungsregeln Rekatalogisierung nach Original, Verzeichnis von Karl Geigy-Hagenbach und Briefkatalog der UB Basel saf
Free-fall energy density and flux in the Schwarzschild black hole
Creators: name: Kim, Wontae
name: Majhi, Bibhas Ranjan
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In the four-dimensional background of Schwarzschild black hole, we investigate the energy densities and fluxes in the freely falling frames for the Boulware, Unruh, and Israel-Hartle-Hawking states. In particular, we study their behaviors near the horizon and asymptotic spatial infinity by using the trace anomaly of a conformally invariant scalar field. In the Boulware state, both the energy density and flux are negative divergent when the observer is dropped at the horizon, and asymptotically vanish. In the Unruh state, the energy density is also negative divergent at the horizon while it is positive finite asymptotically. The flux in the Unruh state is always positive and divergent at the horizon. In the Israel-Hartle-Hawking state, the energy density depends on the angular motion of free fall, and fluxes vanish at the horizon and the spatial infinity. Finally, we discuss the role of the negative energy density near the horizon in the evaporating black hole.
description: Published version
Andantino espressivo [in As-dur für Klavier]
Creators: name: Liszt, Franz
Publisher: name: [s.n.]
Year: 1811

description: 18 Takte in As-dur für Klavier. Tadellos erhaltenes Manuskript aus der Sammlung Aloys Fuchs
description: von F[ranz] Liszt
description: Eigenhändiges Musikmanuskript mit Unterschrift
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Verzeichnung=Description=Inventaire Oktober 2018 HAN-Katalogisierungsregeln Rekatalogisierung nach Original, Verzeichnis von Karl Geigy-Hagenbach und Briefkatalog der UB Basel saf
Nonlinear Beltrami operators, Schauder estimates and bounds for the Jacobian
Creators: name: Astala, Kari
name: Clop, Albert
name: Faraco, Daniel
name: Jääskeläinen, Jarmo
name: Koski, Aleksis
Publisher: name: arXiv
Year: 2015
Subjects: subject: Complex Variables (math.CV)
subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics

description: We provide Schauder estimates for nonlinear Beltrami equations and lower bounds of the Jacobians for homeomorphic solutions. The results were announced in arXiv:1412.4046 but here we give detailed proofs.
description: 19 pages, preprint
Romance de Gastibelza
Creators: name: Maillart, Louis Aimé
Publisher: name: [s.n.]
Year: 1817

description: von Aimé Maillart
description: Eigenhändiges Musikmanuskript mit Unterschrift
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Verzeichnung=Description=Inventaire Oktober 2018 HAN-Katalogisierungsregeln Rekatalogisierung nach Original, Verzeichnis von Karl Geigy-Hagenbach und Briefkatalog der UB Basel saf
Brief an Christoph Bernhard, Bischof zu Münster
Creators: name: Ludwig Wilhelm
Publisher: name: [s.n.]
Year: 1677

description: Gratulationsbrief
description: von Ludwig [Wilhelm], M[arkgraf] v. Baden
description: Brief mit eigenhändiger Unterschrift, einem Gruss an Christof Bernhard, Bischof zu Münster, Adresse und Oblate
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Deutsch
description: Verzeichnung=Description=Inventaire Jan. 2019 HAN-Katalogisierungsregeln Rekatalogisierung nach Original, Verzeichnis von Karl Geigy-Hagenbach und Briefkatalog der UB Basel saf
Local well-posedness for the Hall-MHD equations with fractional magnetic diffusion
Creators: name: Chae, Dongho
name: Wan, Renhui
name: Wu, Jiahong
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q35 (Primary), 35B65, 35Q85, 76W05 (Secondary)

description: The Hall-magnetohydrodynamics (Hall-MHD) equations, rigorously derived from kinetic models, are useful in describing many physical phenomena in geophysics and astrophysics. This paper studies the local well-posedness of classical solutions to the Hall-MHD equations with the magnetic diffusion given by a fractional Laplacian operator, $(-Δ)^α$. Due to the presence of the Hall term in the Hall-MHD equations, standard energy estimates appear to indicate that we need $α\ge 1$ in order to obtain the local well-posedness. This paper breaks the barrier and shows that the fractional Hall-MHD equations are locally well-posed for any $α>\frac12$. The approach here fully exploits the smoothing effects of the dissipation and establishes the local bounds for the Sobolev norms through the Besov space techniques. The method presented here may be applicable to similar situations involving other partial differential equations.
description: 13 pages, this version improves the previous one
A rigorous derivation and energetics of a wave equation with fractional damping
Creators: name: Mielke, Alexander
name: Netz, Roland R.
name: Zendehroud, Sina
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: Bulk-interface coupling
subject: Surface waves
subject: Energy–dissipation balance
subject: Fractional derivatives
subject: Parabolic Dirichlet-to-Neumann map
subject: Convergence of semigroups
subject: 510 Mathematik

description: We consider a linear system that consists of a linear wave equation on a horizontal hypersurface and a parabolic equation in the half space below. The model describes longitudinal elastic waves in organic monolayers at the water–air interface, which is an experimental setup that is relevant for understanding wave propagation in biological membranes. We study the scaling regime where the relevant horizontal length scale is much larger than the vertical length scale and provide a rigorous limit leading to a fractionally damped wave equation for the membrane. We provide the associated existence results via linear semigroup theory and show convergence of the solutions in the scaling limit. Moreover, based on the energy–dissipation structure for the full model, we derive a natural energy and a natural dissipation function for the fractionally damped wave equation with a time derivative of order 3/2.
Gerichtsurteil
Creators: name: Platter, Felix
Publisher: name: [s.n.]
Year: 1671

description: von Felix Platter [II]
description: Brief von fremder Hand mit eigenhändiger Unterschrift und 3 roten Lacksiegel
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Deutsch
description: Verzeichnung=Description=Inventaire Dezember 2020 HAN-Katalogisierungsregeln Rekatalogisierung nach Original und Briefkatalog der UB Basel saf
Twisting and localization in supergravity: equivariant cohomology of BPS black holes
Creators: name: Jeon, Imtak
name: Murthy, Sameer
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We develop the formalism of supersymmetric localization in supergravity using the deformed BRST algebra defined in the presence of a supersymmetric background as recently formulated in arxiv:1806.03690. The gravitational functional integral localizes onto the cohomology of a global supercharge $Q_\text{eq}$, obeying $Q_\text{eq}^2=H$, where $H$ is a global symmetry of the background. Our construction naturally produces a twisted version of supergravity whenever supersymmetry can be realized off-shell. We present the details of the twisted graviton multiplet and ghost fields for the superconformal formulation of four-dimensional N=2 supergravity. As an application of our formalism, we systematize the computation of the exact quantum entropy of supersymmetric black holes. In particular, we compute the one-loop determinant of the $Q_\text{eq} \mathcal{V}$ deformation operator for the off-shell fluctuations of the Weyl multiplet around the $AdS_2 \times S^2$ saddle. This result, which is consistent with the corresponding large-charge on-shell analysis, is needed to complete the first-principles computation of the quantum entropy.
description: V2: subsection 4.3 added, typo corrected, accepted version in JHEP; V3: typos corrected; V4: minor typos corrected
The Radó-Kneser-Choquet theorem for $p$-harmonic mappings between Riemannian surfaces
Creators: name: Adamowicz, Tomasz
name: Jääskeläinen, Jarmo
name: Koski, Aleksis
Publisher: name: arXiv
Year: 2018
Subjects: subject: Analysis of PDEs (math.AP)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 35J47 (Primary), 58E20, 35J70, 35J92 (Secondary)

description: In the planar setting the Radó-Kneser-Choquet theorem states that a harmonic map from the unit disk onto a Jordan domain bounded by a convex curve is a diffeomorphism provided that the boundary mapping is a homeomorphism. We prove the injectivity criterion of Radó-Kneser-Choquet for $p$-harmonic mappings between Riemannian surfaces. In our proof of the injecticity criterion we approximate the $p$-harmonic map with auxiliary mappings that solve uniformly elliptic systems. We prove that each auxiliary mapping has a positive Jacobian by a homotopy argument. We keep the maps injective all the way through the homotopy with the help of the minimum principle for a certain subharmonic expression that is related to the Jacobian.
description: 38 pages, a postprint to appear in Rev. Mat. Iberoam. 36(2020), no. 6
Brief an [monsieur de] Sennetiare
Creators: name: Franz
Publisher: name: [s.n.]
Year: 1560

description: von Francoys [II, roi de France]
description: Brief mit eigenhändiger Unterschrift
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Französisch
description: Verzeichnung=Description=Inventaire Jan. 2019 HAN-Katalogisierungsregeln Rekatalogisierung nach Original, Verzeichnis von Karl Geigy-Hagenbach und Briefkatalog der UB Basel saf
Maximal almost disjoint families, determinacy, and forcing
Creators: name: Haga, Karen Bakke
name: Schrittesser, David
name: Törnquist, Asger
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E05, 03E15, 03E45, 03E60

description: We study the notion of $\mathcal J$-MAD families where $\mathcal J$ is a Borel ideal on $ω$. We show that if $\mathcal J$ is an arbitrary $F_σ$ ideal, or is any finite or countably iterated Fubini product of $F_σ$ ideals, then there are no analytic infinite $\mathcal J$-MAD families, and assuming Projective Determinacy there are no infinite projective $\mathcal J$-MAD families; and under the full Axiom of Determinacy + $V=\mathbf{L}(\mathbb{R})$ there are no infinite $\mathcal J$-mad families. These results apply in particular when $\mathcal J$ is the ideal of finite sets $\mathrm{Fin}$, which corresponds to the classical notion of MAD families. The proofs combine ideas from invariant descriptive set theory and forcing.
description: 40 pages
Contrat de mariage
Creators: name: Ludwig
name: Marie Antoinette
Publisher: name: [s.n.]
Year: 1781

description: Unterzeichnet von Louis XVI, Marie Antoinette, Louis Stanislas Xavier (Comte de Provence, Louis XVIII) und 10 weiteren
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Französisch
description: Verzeichnung=Description=Inventaire Juni 2020 HAN-Katalogisierungsregeln Rekatalogisierung nach Original saf
Thermodynamical behaviour of the Variable Chaplygin gas
Creators: name: Panigrahi, D
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The thermodynamical behaviour of the Variable Chaplygin gas (VCG) model is studied, using an equation of state like $P = - \frac{B}ρ$, where $B = B_{0}V^{-\frac{n}{3}}$. Here $B_{0}$ is a positive universal constant, $n$ is also a constant and $V$ is the volume of the fluid. From the consideration of thermodynamic stability, it is seen that only if the values of $n$ are allowed to be negative, then $(\frac{\partial P}{\partial V})_{S} <0$ throughout the evolution. Again thermal capacity at constant volume $c_{V}$ shows positive expression. Using the best fit value of $ n = -3.4$ as previously found by Guo \emph{et al} \cite{guo1} gives that the fluid is thermodynamically stable through out the evolution. The effective equation of state for the special case of, $n = 0$ goes to $Λ$CDM model. Again for $n <0$ it favours phantom-like cosmology which is in agreement with the current SNe Ia constraints like VCG model. The deceleration parameter is also studied in the context of thermodynamics and the analysis shows that the \emph{flip} occurs for the value of $ n < 4$. Finally the thermal equation of state is discussed which is an explicit function of temperature only. It is also observed that the third law of thermodynamics is satisfied in this model. As expected the volume increases as temperature falls during adiabatic expansions. In this case, for $ T \rightarrow 0$, the thermal equation of state reduces to $(- 1 + \frac{n}{6})$ which is identical with the equation of state for the case of large volume.
description: 10 pages, 4 figures
Spin Operator and Entanglement in Quantum Field Theory
Creators: name: Fujikawa, Kazuo
name: Oh, C. H.
name: Zhang, Chengjie
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Entanglement is studied in the framework of Dyson's S-matrix theory in relativistic quantum field theory, which leads to a natural definition of entangled states of a particle-antiparticle pair and the spin operator from a Noether current. As an explicit example, the decay of a massive pseudo-scalar particle into a pair of electron and positron is analyzed. Two spin operators are extracted from the Noether current. The Wigner spin operator characterizes spin states at the rest frame of each fermion and, although not measurable in the laboratory, gives rise to a straightforward generalization of low energy analysis of entanglement to the ultra-relativistic domain. In contrast, if one adopts a (modified) Dirac spin operator, the entanglement measured by spin correlation becomes maximal near the threshold of the decay, while the entanglement is replaced by the classical correlation for the ultra-relativistic electron-positron pair by analogy to the case of neutrinos, for which a hidden-variables-type description is possible. Chiral symmetry differentiates the spin angular momentum and the magnetic moment. The use of weak interaction that can measure helicity is suggested in the analysis of entanglement at high energies instead of a Stern-Gerlach apparatus which is useless for the electron. A difference between the electron spin at high energies and the photon linear polarization is also noted. The Standard Model can describe all the observable properties of leptons.
description: 17 pages. Substantially modified and extended. The title has been changed. To appear in PRD
A Sacks indestructible co-analytic maximal eventually different family
Creators: name: Fischer, Vera
name: Schrittesser, David
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E17, 03E35

description: In the constructible universe, we construct a co-analytic maximal family of pairwise eventually different functions from $\mathbb{N}$ to $\mathbb{N}$ which remains maximal after adding arbitrarily many Sacks reals (by a countably supported iteration or product).
description: 20 pages
Brief an Römische Kaiserin zu Ungarn und Böheim Königin, Erzherzoginn zu Österreich
Creators: name: Daun, Leopold von
Publisher: name: [s.n.]
Year: 1758

description: von Leopold von Daun
description: Eigenhändiger Schlusssatz und Unterschrift
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Deutsch
description: Verzeichnung=Description=Inventaire Mai 2022 HAN-Katalogisierungsregeln Rekatalogisierung nach Original und Briefkatalog der UB Basel ben
Wormhole geometries supported by quark matter at ultra-high densities
Creators: name: Harko, Tiberiu
name: Lobo, Francisco S. N.
name: Mak, M. K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A fundamental ingredient in wormhole physics is the presence of exotic matter, which involves the violation of the null energy condition. In this context, we investigate the possibility that wormholes could be supported by quark matter at extreme densities. Theoretical and experimental investigations of the structure of baryons show that strange quark matter, consisting of the u, d and s quarks, is the most energetically favorable state of baryonic matter. Moreover, at ultra-high densities, quark matter may exist in a variety of superconducting states, namely, the Color-Flavor-Locked (CFL) phase. Motivated by these theoretical models, we explore the conditions under which wormhole geometries may be supported by the equations of state considered in the theoretical investigations of quark-gluon interactions. For the description of the normal quark matter we adopt the Massachusetts Institute of Technology (MIT) bag model equation of state, while the color superconducting quark phases are described by a first order approximation of the free energy. By assuming specific forms for the bag and gap functions, several wormhole models are obtained for both normal and superconducting quark matter. The effects of the presence of an electrical charge are also taken into account.
description: 11 pages. V2: 12 pages, major revision and modifications; accepted for publication in the International Journal of Modern Physics D
Suboptimal Safety-Critical Control for Continuous Systems Using Prediction-Correction Online Optimization
Creators: name: Wang, Shengbo
name: Wen, Shiping
name: Yang, Yin
name: Cao, Yuting
name: Shi, Kaibo
name: Huang, Tingwen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper investigates the control barrier function (CBF) based safety-critical control for continuous nonlinear control affine systems using the more efficient online algorithms through time-varying optimization. The idea lies in that when quadratic programming (QP) or other convex optimization algorithms needed in the CBF-based method is not computation affordable, the alternative suboptimal feasible solutions can be obtained more economically. By using the barrier-based interior point method, the constrained CBF-QP problems are converted into the unconstrained ones with suboptimal solutions tracked by two continuous descent-based algorithms. Considering the lag effect of tracking and exploiting the system information, the prediction method is added to the algorithms which thereby achieves a exponential convergence rate to the time-varying suboptimal solutions. The convergence and robustness of the designed methods as well as the safety criteria of the algorithms are analyzed theoretically. In the end, the effectiveness is illustrated by simulations on the anti-swing and obstacle avoidance tasks.
Hierarchical Theory of Quantum Adiabatic Evolution
Creators: name: Zhang, Qi
name: Gong, Jiangbin
name: Wu, Biao
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum adiabatic evolution is a dynamical evolution of a quantum system under slow external driving. According to the quantum adiabatic theorem, no transitions occur between non-degenerate instantaneous eigen-energy levels in such a dynamical evolution. However, this is true only when the driving rate is infinitesimally small. For a small nonzero driving rate, there are generally small transition probabilities between the energy levels. We develop a classical mechanics framework to address the small deviations from the quantum adiabatic theorem order by order. A hierarchy of Hamiltonians are constructed iteratively with the zeroth-order Hamiltonian being determined by the original system Hamiltonian. The $k$th-order deviations are governed by a $k$th-order Hamiltonian, which depends on the time derivatives of the adiabatic parameters up to the $k$th-order. Two simple examples, the Landau-Zener model and a spin-1/2 particle in a rotating magnetic field, are used to illustrate our hierarchical theory. Our analysis also exposes a deep, previously unknown connection between classical adiabatic theory and quantum adiabatic theory.
description: 10 pages, 6 figures, 29 references
Lebesgue's Density Theorem and definable selectors for ideals
Creators: name: Müller, Sandra
name: Schlicht, Philipp
name: Schrittesser, David
name: Weinert, Thilo
Publisher: name: arXiv
Year: 2018
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03E15, 28A05,

description: We introduce a notion of density point and prove results analogous to Lebesgue's density theorem for various well-known ideals on Cantor space and Baire space. In fact, we isolate a class of ideals for which our results hold. In contrast to these results, we show that there is no reasonably definable selector that chooses representatives for the equivalence relation on the Borel sets of having countable symmetric difference. In other words, there is no notion of density which makes the ideal of countable sets satisfy an analogue to the density theorem. The proofs of the positive results use only elementary combinatorics of trees, while the negative results rely on forcing arguments.
description: 29 pages; improved proof of 5.5
Matched-filter study and energy budget suggest no detectable gravitational-wave 'extended emission' from GW170817
Creators: name: Oliver, Miquel
name: Keitel, David
name: Miller, Andrew L.
name: Estelles, Hector
name: Sintes, Alicia M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Van Putten & Della Valle (2018) have reported a possible detection of gravitational-wave 'extended emission' from a neutron star remnant of GW170817. Starting from the time-frequency evolution and total emitted energy of their reported candidate, we show that such an emission is not compatible with the current understanding of neutron stars. We explore the additional required physical assumptions to make a full waveform model, for example, taking the optimistic emission from a spining-down neutron star with fixed quadrupolar deformation, and study whether even an ideal single-template matched-filter analysis could detect an ideal, fully phase-coherent signal. We find that even in the most optimistic case an increase in energy and extreme parameters would be required for a confident detection with LIGO sensitivity as of 2018-08-17. The argument also holds for other waveform models following a similar time-frequency track and overall energy budget. Single-template matched filtering on the LIGO data around GW170817, and on data with added simulated signals, verifies the expected sensitivity scaling and the overall statistical expectation.
description: 9 pages, 6 figures, updated version as accepted by MNRAS
$\mathrm{Pal}^k$ Is Linear Recognizable Online
Creators: name: Kosolobov, Dmitry
name: Rubinchik, Mikhail
name: Shur, Arseny M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Formal Languages and Automata Theory (cs.FL)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: Given a language $L$ that is online recognizable in linear time and space, we construct a linear time and space online recognition algorithm for the language $L\cdot\mathrm{Pal}$, where $\mathrm{Pal}$ is the language of all nonempty palindromes. Hence for every fixed positive $k$, $\mathrm{Pal}^k$ is online recognizable in linear time and space. Thus we solve an open problem posed by Galil and Seiferas in 1978.
description: 18 pages, 5 figures, presented in SOFSEM 2015
Brief an Ludwig Lavater
Creators: name: Wurstisen, Christian
Publisher: name: 9. März [zwischen 1544 und 1586]
Year: 1544

description: von Christian Wurstis[en]
description: Eigenhändiger Brief mit Unterschrift
description: Stiftung Sammlung Karl Geigy-Hagenbach
description: Lateinisch
description: Verzeichnung=Description=Inventaire Januar 2023 HAN-Katalogisierungsregeln Rekatalogisierung nach Original, Verzeichnis von Karl Geigy-Hagenbach und Briefkatalog der UB Basel nni
BCJ duality and double copy in the closed string sector
Creators: name: Ochirov, Alexander
name: Tourkine, Piotr
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: This paper is focused on the loop-level understanding of the Bern-Carrasco-Johansson double copy procedure that relates the integrands of gauge theory and gravity scattering amplitudes. At four points, the first non-trivial example of that construction is one-loop amplitudes in N=2 super-Yang-Mills theory and the symmetric realization of N=4 matter-coupled supergravity. Our approach is to use both field and string theory in parallel to analyze these amplitudes. The closed string provides a natural framework to analyze the BCJ construction, in which the left- and right-moving sectors separately create the color and kinematics at the integrand level. At tree level, in a five-point example, we show that the Mafra-Schlotterer-Stieberger procedure gives a new direct proof of the color-kinematics double copy. We outline the extension of that argument to n points. At loop level, the field-theoretic BCJ construction of N=2 SYM amplitudes introduces new terms, unexpected from the string theory perspective. We discuss to what extent we can relate them to the terms coming from the interactions between left- and right-movers in the string-theoretic gravity construction.
description: 46 pages, 8 figures, 2 tables; v3 significantly revised published version
10 Stücke für Orgel : Op. 102a
10 Bagatellen für Orgel
Creators: name: Rippl, Otto
Publisher: name: [s.n.]
Year: 1884

description: komponiert von Otto Rippl
description: Bearbeitung für Klavier (10 Bagatellen für Klavier, Op. 102), siehe UBH kr XXX 102
description: Verzeichnung=Description=Inventaire November 2022 HAN-Katalogisierungsregeln jpl
Orbifolds of symplectic fermion algebras
Creators: name: Creutzig, Thomas
name: Linshaw, Andrew R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Representation Theory (math.RT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: We present a systematic study of the orbifolds of the rank $n$ symplectic fermion algebra $\mathcal{A}(n)$, which has full automorphism group $Sp(2n)$. First, we show that $\mathcal{A}(n)^{Sp(2n)}$ and $\mathcal{A}(n)^{GL(n)}$ are $\mathcal{W}$-algebras of type $\mathcal{W}(2,4,\dots, 2n)$ and $\mathcal{W}(2,3,\dots, 2n+1)$, respectively. Using these results, we find minimal strong finite generating sets for $\mathcal{A}(mn)^{Sp(2n)}$ and $\mathcal{A}(mn)^{GL(n)}$ for all $m,n\geq 1$. We compute the characters of the irreducible representations of $\mathcal{A}(mn)^{Sp(2n)\times SO(m)}$ and $\mathcal{A}(mn)^{GL(n)\times GL(m)}$ appearing inside $\mathcal{A}(mn)$, and we express these characters using partial theta functions. Finally, we give a complete solution to the Hilbert problem for $\mathcal{A}(n)$; we show that for any reductive group $G$ of automorphisms, $\mathcal{A}(n)^G$ is strongly finitely generated.
description: Exposition streamlined, some new results added in Section 5, references added. arXiv admin note: text overlap with arXiv:1205.4469
A fast and robust algorithm to count topologically persistent holes in noisy clouds
Creators: name: Kurlin, Vitaliy
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Geometry (cs.CG)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Algebraic Topology (math.AT)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 68U05 (Primary) 65D18, 68U10 (Secondary)

description: Preprocessing a 2D image often produces a noisy cloud of interest points. We study the problem of counting holes in unorganized clouds in the plane. The holes in a given cloud are quantified by the topological persistence of their boundary contours when the cloud is analyzed at all possible scales. We design the algorithm to count holes that are most persistent in the filtration of offsets (neighborhoods) around given points. The input is a cloud of $n$ points in the plane without any user-defined parameters. The algorithm has $O(n\log n)$ time and $O(n)$ space. The output is the array (number of holes, relative persistence in the filtration). We prove theoretical guarantees when the algorithm finds the correct number of holes (components in the complement) of an unknown shape approximated by a cloud.
description: Full version of the paper that has appeared in Proceedings of IEEE conference CVPR 2014: Computer Vision and Pattern Recognition, Columbus, Ohio, USA (10 pages, 20 figures, 3 appendices, more examples will be at http://kurlin.org)
Ghosts in the self-accelerating DGP branch with Gauss-Bonnet effect
Creators: name: Liu, Yen-Wei
name: Izumi, Keisuke
name: Bouhmadi-Lopez, Mariam
name: Chen, Pisin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The Dvali-Gabadadze-Porrati brane-world model provides a possible approach to address the late-time cosmic acceleration. However, it has subsequently been pointed out that a ghost instability will arise on the self-accelerating branch. Here, we carefully investigate whether this ghost problem could be possibly cured by introducing the Gauss-Bonnet term in the five-dimensional bulk action, a natural generalization to the Dvali-Gabadadze-Porrati model. Our analysis is carried out for a background where a de Sitter brane is embedded in an anti-de Sitter bulk. Our result shows that the ghost excitations cannot be avoided even in this modified model.
description: 9 pages, 1 figure. Version improved considerably: one footnote removed with extended discussion in Sec. I, a new paragraph added at the end of Sec. IV and another new paragraph in Sec. V, one figure and some references added
Hybrid spin and valley quantum computing with singlet-triplet qubits
Creators: name: Rohling, Niklas
name: Russ, Maximilian
name: Burkard, Guido
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The valley degree of freedom in the electronic band structure of silicon, graphene, and other materials is often considered to be an obstacle for quantum computing (QC) based on electron spins in quantum dots. Here we show that control over the valley state opens new possibilities for quantum information processing. Combining qubits encoded in the singlet-triplet subspace of spin and valley states allows for universal QC using a universal two-qubit gate directly provided by the exchange interaction. We show how spin and valley qubits can be separated in order to allow for single-qubit rotations.
description: 14 pages, 7 figures
Understanding Refugee Women’s Contraceptive Health Needs: A Scoping Review
Creators: name: Mitchell, Chrissandra
Publisher: name: Université d'Ottawa / University of Ottawa
Year: 2023
Subjects: Refugee
Women
Contraception
Sexual and reproductive health

description: Background: Canada has accepted over 40,000 refugees in the past five years. Approximately half of these are women of reproductive age. Following forced displacement, refugee women face several health inequities that affect their use of health services. Refugee women underutilize contraceptive care and have unmet contraceptive needs, and yet many engage in unprotected sexual activity with no desire to conceive. With the humanitarian crisis causing record-breaking shifts in migration, it is imperative that nurses understand the needs of refugee women related to their contraception. Objective and methods: To systematically identify the global literature on refugee women’s use of contraception within the reproductive age group. A scoping review study design using Arksey and O’Malley’s methodology was used. The systematic search of PubMed, Embase, CINAHL,Global Health, Nursing and Allied Health, Scopus, PsychInfo, and Gender Watch databases was designed with a health sciences librarian. All standard synthesis procedures were followed. The Integrated Framework for Health (IFH) guided data synthesis and I followed the PRISMA-ScR guideline in the conduct and reporting of the study. Results: Social characteristics, risk and protective factors, psychosocial resources, and health status factors that influence refugee women’s use of contraception, as well as key knowledge gaps. Conclusion: While each refugee will experience their forced displacement differently, there are patterns relevant to their contraception use that can inform clinical practice, policy, education, and future research.
Supplemental Methods, Figures, Tables
Creators: name: Dougherty, Edward
name: Chen, Li-Yuan
name: Awad, Keytam S.
name: A. Ferreyra, Gabriela
name: Demirkale, Cumhur Y.
name: Keshavarz, Ali
name: Gairhe, Salina
name: Johnston, Kathryn
A.
name: Hicks, Madelyn E.
name: Sandler, Alexis B.
name: Curran, Colleen S.
name: Krack, Janell M.
name: Ding, Yi
name: Suffredini, Anthony F.
name: A. Solomon, Michael
name: M. Elinoff, Jason
name: L Danner, Robert
Publisher: name: figshare
Year: 2023
Subjects: Other biomedical and clinical sciences not elsewhere classified

description: Supplemental methods, figures, and tables to accompany manuscript by E Dougherty et al.
Generalized Taylor-Duffy Method for Efficient Evaluation of Galerkin Integrals in Boundary-Element Method Computations
Creators: name: Reid, M. T. Homer
name: Johnson, Steven G.
name: White, Jacob K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We present a generic technique, automated by computer-algebra systems and available as open-source software \cite{scuff-em}, for efficient numerical evaluation of a large family of singular and nonsingular 4-dimensional integrals over triangle-product domains, such as those arising in the boundary-element method (BEM) of computational electromagnetism. To date, practical implementation of BEM solvers has often required the aggregation of multiple disparate integral-evaluation schemes to treat all of the distinct types of integrals needed for a given BEM formulation; in contrast, our technique allows many different types of integrals to be handled by the \emph{same} algorithm and the same code implementation. Our method is a significant generalization of the Taylor--Duffy approach \cite{Taylor2003,Duffy1982}, which was originally presented for just a single type of integrand; in addition to generalizing this technique to a broad class of integrands, we also achieve a significant improvement in its efficiency by showing how the \emph{dimension} of the final numerical integral may often be reduced by one. In particular, if $n$ is the number of common vertices between the two triangles, in many cases we can reduce the dimension of the integral from $4-n$ to $3-n$, obtaining a closed-form analytical result for $n=3$ (the common-triangle case).
description: Revised version containing a rearrangement of the text and updates to figures
The origin of the Far-infrared continuum of z ~ 6 quasars: a radiative transfer model for SDSS J1148+5251
Creators: name: Schneider, Raffaella
name: Bianchi, Simone
name: Valiante, Rosa
name: Risaliti, Guido
name: Salvadori, Stefania
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigate the origin of the FIR continuum of SDSS J1148+5251, using it as a prototype for the more general class of high-luminosity high-redshift QSOs. We run the radiative transfer code TRADING to follow the transfer of radiation from the central source and from stellar sources through the dusty environment of the host galaxy. The model is based on the output of the semi-analytical merger tree code, GAMETE/QSOdust, which enables to predict the evolution of the host galaxy and of its nuclear black hole, following the star formation history and chemical evolution -- including dust -- in all the progenitor galaxies of SDSS J1148+5251. We find that the radiation emitted by the central source can also provide an important source of heating for the dust distributed in the host galaxy, powering at least 30% and up to 70% of the observed far infrared emission at rest-frame wavelengths [20 - 1000]micron. The remaining fraction is contributed by stellar sources and can only be achieved if the host galaxy is able to sustain a star formation rate of ~ 900 Msun/yr at z=6.4. This points to a co-evolution scenario where, during their hierarchical assembly, the first SMBHs and their host galaxies first grow at the same pace until the black hole reaches a mass of ~ 2 10^8 Msun and starts growing faster than its host, reaching the bright quasar phase when the black hole and stellar mass fall within the scatter of the scaling relation observed in local galaxies. This same evolutionary scenario has been recently shown to explain the properties of a larger sample of 5 < z <6.4 QSOs, and imply that current dynamical mass measurements may have missed an important fraction of the host galaxy stellar mass. We conclude that the FIR luminosity of high-z quasars is a sensitive tracer of the rapidly changing physical conditions in the host galaxy.
description: 11 pages, 5 figures, to appear in A&A
Regularity for a Local-Nonlocal Transmission Problem
Creators: name: Kriventsov, Dennis
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35R09, 35A01, 35B65

description: We formulate and study an elliptic transmission-like problem combining local and nonlocal elements. Let $\mathbb{R}^{n}$ be separated into two components by a smooth hypersurface $Γ$. On one side of $Γ$, a function satisfies a local second-order elliptic equation. On the other, it satisfies a nonlocal one of lower order. In addition, a nonlocal transmission condition is imposed across the interface $Γ$, which has a natural variational interpretation. We deduce the existence of solutions to the corresponding Dirichlet problem, and show that under mild assumptions they are Hölder continuous, following the method of De Giorgi. The principal difficulty stems from the lack of scale invariance near $Γ$, which we circumvent by deducing a special energy estimate which is uniform in the scaling parameter. We then turn to the question of optimal regularity and qualitative properties of solutions, and show that (in the case of constant coefficients and flat $Γ)$ they satisfy a kind of transmission condition, where the ratio of "fractional conormal derivatives" on the two sides of the interface is fixed. A perturbative argument is then given to show how to obtain regularity for solutions to an equation with variable coefficients and smooth interface. Throughout, we pay special attention to a nonlinear version of the problem with a drift given by a singular integral operator of the solution, which has an interpretation in the context of quasigeostrophic dynamics.
description: 90 pages, 3 figures
Non-Euclidean Monotone Operator Theory with Applications to Recurrent Neural Networks
Creators: name: Davydov, Alexander
name: Jafarpour, Saber
name: Proskurnikov, Anton V.
name: Bullo, Francesco
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: Systems and Control (eess.SY)
subject: FOS: Mathematics
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We provide a novel transcription of monotone operator theory to the non-Euclidean finite-dimensional spaces $\ell_1$ and $\ell_{\infty}$. We first establish properties of mappings which are monotone with respect to the non-Euclidean norms $\ell_1$ or $\ell_{\infty}$. In analogy with their Euclidean counterparts, mappings which are monotone with respect to a non-Euclidean norm are amenable to numerous algorithms for computing their zeros. We demonstrate that several classic iterative methods for computing zeros of monotone operators are directly applicable in the non-Euclidean framework. We present a case-study in the equilibrium computation of recurrent neural networks and demonstrate that casting the computation as a suitable operator splitting problem improves convergence rates.
A new proof of the theorems of Lin-Zaidenberg and Abhyankar-Moh-Suzuki
Creators: name: Palka, Karol
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H50 Primary, 14R10 (Secondary),

description: Using the theory of minimal models of quasi-projective surfaces we give a new proof of the theorem of Lin-Zaidenberg which says that every topologically contractible algebraic curve in the complex affine plane has equation $X^n=Y^m$ in some algebraic coordinates on the plane. This gives also a proof of the theorem of Abhyankar-Moh-Suzuki concerning embeddings of the complex line into the plane. Independently, we show how to deduce the latter theorem from basic properties of $\mathbb{Q}$-acyclic surfaces.
description: 12 pages, 1 figure
Scalar extensions of derived categories and non-Fourier-Mukai functors
Creators: name: Rizzardo, Alice
name: Bergh, Michel Van den
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 13D09, 18E30, 14A22

description: Orlov's famous representability theorem asserts that any fully faithful functor between the derived categories of coherent sheaves on smooth projective varieties is a Fourier-Mukai functor. This result has been extended by Lunts and Orlov to include functors from perfect complexes to quasi-coherent complexes. In this paper we show that the latter extension is false without the full faithfulness hypothesis. Our results are based on the properties of scalar extensions of derived categories, whose investigation was started by Pawel Sosna and the first author.
description: 35 pages
ЎЗБЕКИСТОН  ЖАНУБИДА СОЯ ЭКИНИНИ  ТАКРОРИЙ ЭКИН СИФАТИДА ЭКСА БЎЛАДИМИ?
Creators: name: Абдурахимов, Н.Н.
name: Муродов, А.М.
Publisher: name: Zenodo
Year: 2024

description: Ушбу мақолада Ўзбекистоннинг жанубий минтақасида   соя экинини такрорий экин сифатида экиш муддатлари, етиштириш агротехникаси  бўйича амалга оширилган илмий   натижалар таҳлили келтирилган.
Tolerances induced by irredundant coverings
Creators: name: Järvinen, Jouni
name: Radeleczki, Sándor
Publisher: name: arXiv
Year: 2014
Subjects: subject: Rings and Algebras (math.RA)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 03E20, 05C69 (Primary), 68T37, 06B23 (Secondary)

description: In this paper, we consider tolerances induced by irredundant coverings. Each tolerance $R$ on $U$ determines a quasiorder $\lesssim_R$ by setting $x \lesssim_R y$ if and only if $R(x) \subseteq R(y)$. We prove that for a tolerance $R$ induced by a covering $\mathcal{H}$ of $U$, the covering $\mathcal{H}$ is irredundant if and only if the quasiordered set $(U, \lesssim_R)$ is bounded by minimal elements and the tolerance $R$ coincides with the product ${\gtrsim_R} \circ {\lesssim_R}$. We also show that in such a case $\mathcal{H} = \{ {\uparrow}m \mid \text{$m$ is minimal in $(U,\lesssim_R)$} \}$, and for each minimal $m$, we have $R(m) = {\uparrow} m$. Additionally, this irredundant covering $\mathcal{H}$ inducing $R$ consists of some blocks of the tolerance $R$. We give necessary and sufficient conditions under which $\mathcal{H}$ and the set of $R$-blocks coincide. These results are established by applying the notion of Helly numbers of quasiordered sets.
description: 12 pages, 2 figures
Dataset attributes and range of variation
Creators: name: Serrano-Mamolar, Ana
name: Miguel Alonso, Inés
name: Checa, David
name: Pardo-Aguilar, Carlos
Publisher: name: figshare
Year: 2022
Subjects: Stream and sensor data

description: A dataset was created to collect data from diferent VR experiences carried out with 63 subjects. It included two types of data: 1) global data from each exercise; and 2) user performance data. The dataset used for experimentaion within this work is summarized in this table.