cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Correlated Random Matrices: Band Rigidity and Edge Universality
Creators: name: Alt, Johannes
name: Erdős, László
name: Krüger, Torben
name: Schröder, Dominik
Publisher: name: arXiv
Year: 2018
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60B20, 15B52

description: We prove edge universality for a general class of correlated real symmetric or complex Hermitian Wigner matrices with arbitrary expectation. Our theorem also applies to internal edges of the self-consistent density of states. In particular, we establish a strong form of band rigidity which excludes mismatches between location and label of eigenvalues close to internal edges in these general models.
description: 26 pages. In the new version we included a self-contained analysis of general square-root edges of the density of states
The psychological consequences of work injury : the influence of personality, workers' compensation, and perceptions of justice
Creators: name: Wall., Cindy Lee
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Cosmological perturbations in modified teleparallel gravity models
Creators: name: Golovnev, Alexey
name: Koivisto, Tomi
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Cosmological perturbations are considered in $f(T)$ and in scalar-torsion $f(φ)T$ teleparallel models of gravity. Full sets of linear perturbation equations are accurately derived and analysed at the relevant limits. Interesting features of generalisations to other teleparallel models, spatially curved backgrounds, and rotated tetrads are pointed out.
description: 18 pages without figures. v2: added references
On the Stretch Factor of Polygonal Chains
Creators: name: Chen, Ke
name: Dumitrescu, Adrian
name: Mulzer, Wolfgang
name: Tóth, Csaba D.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Geometry (cs.CG)
subject: FOS: Computer and information sciences

description: Let $P=(p_1, p_2, \dots, p_n)$ be a polygonal chain in $\mathbb{R}^d$. The stretch factor of $P$ is the ratio between the total length of $P$ and the distance of its endpoints, $\sum_{i = 1}^{n-1} |p_i p_{i+1}|/|p_1 p_n|$. For a parameter $c \geq 1$, we call $P$ a $c$-chain if $|p_ip_j|+|p_jp_k| \leq c|p_ip_k|$, for every triple $(i,j,k)$, $1 \leq i 0$, there is a noncrossing $c$-chain that has stretch factor $Ω(n^{1/2-\varepsilon})$, for sufficiently large constant $c=c(\varepsilon)$; (ii) on the other hand, the stretch factor of a $c$-chain $P$ is $O\left(n^{1/2}\right)$, for every constant $c\geq 1$, regardless of whether $P$ is crossing or noncrossing; and (iii) we give a randomized algorithm that can determine, for a polygonal chain $P$ in $\mathbb{R}^2$ with $n$ vertices, the minimum $c\geq 1$ for which $P$ is a $c$-chain in $O\left(n^{2.5}\ \mathrm{polylog}\ n\right)$ expected time and $O(n\log n)$ space. These results generalize to $\mathbb{R}^d$. For every dimension $d\geq 2$ and every $\varepsilon>0$, we construct a noncrossing $c$-chain that has stretch factor $Ω\left(n^{(1-\varepsilon)(d-1)/d}\right)$; on the other hand, the stretch factor of any $c$-chain is $O\left((n-1)^{(d-1)/d}\right)$; for every $c>1$, we can test whether an $n$-vertex chain in $\mathbb{R}^d$ is a $c$-chain in $O\left(n^{3-1/d}\ \mathrm{polylog}\ n\right)$ expected time and $O(n\log n)$ space.
description: 24 pages, 14 figures; a preliminary version appeared at MFCS 2019
Structure and Dynamics of Hybrid Colloid-Polyelectrolyte Coacervates: Insights from Molecular Simulations
Creators: name: Yu, Boyuan
name: Liang, Heyi
name: Nealey, Paul F.
name: Tirrell, Matthew
name: Rumyantsev, Artem M.
name: de Pablo, Juan J.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Electrostatic interactions in polymeric systems are responsible for a wide range of liquid-liquid phase transitions that are of importance for biology and materials science. Such transitions are referred to as complex coacervation, and recent studies have sought to understand the underlying physics and chemistry. Most theoretical and simulation efforts to date have focused on oppositely charged linear polyelectrolytes, which adopt nearly ideal-coil conformations in the condensed phase. However, when one of the coacervate components is a globular protein, a better model of complexation should replace one of the species with a spherical charged particle or colloid. In this work, we perform coarse-grained simulations of colloid-polyelectrolyte coacervation using a spherical model for the colloid. Simulation results indicate that the electroneutral cell of the resulting (hybrid) coacervates consists of a polyelectrolyte layer adsorbed on the colloid. Power laws for the structure and the density of the condensed phase, which are extracted from simulations, are found to be consistent with the adsorption-based scaling theory of coacervation. The coacervates remain amorphous (disordered) at a moderate colloid charge, $Q$, while an intra-coacervate colloidal crystal is formed above a certain threshold, at $Q > Q^{*}$. In the disordered coacervate, if $Q$ is sufficiently low, colloids diffuse as neutral non-sticky nanoparticles in the semidilute polymer solution. For higher $Q$, adsorption is strong and colloids become effectively sticky. Our findings are relevant for the coacervation of polyelectrolytes with proteins, spherical micelles of ionic surfactants, and solid organic or inorganic nanoparticles.
Mapping Quantum Circuits to IBM QX Architectures Using the Minimal Number of SWAP and H Operations
Creators: name: Wille, Robert
name: Burgholzer, Lukas
name: Zulehner, Alwin
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The recent progress in the physical realization of quantum computers (the first publicly available ones--IBM's QX architectures--have been launched in 2017) has motivated research on automatic methods that aid users in running quantum circuits on them. Here, certain physical constraints given by the architectures which restrict the allowed interactions of the involved qubits have to be satisfied. Thus far, this has been addressed by inserting SWAP and H operations. However, it remains unknown whether existing methods add a minimum number of SWAP and H operations or, if not, how far they are away from that minimum--an NP-complete problem. In this work, we address this by formulating the mapping task as a symbolic optimization problem that is solved using reasoning engines like Boolean satisfiability solvers. By this, we do not only provide a method that maps quantum circuits to IBM's QX architectures with a minimal number of SWAP and H operations, but also show by experimental evaluation that the number of operations added by IBM's heuristic solution exceeds the lower bound by more than 100% on average. An implementation of the proposed methodology is publicly available at http://iic.jku.at/eda/research/ibm_qx_mapping.
Semiclassical two-step model for strong-field ionization
Creators: name: Shvetsov-Shilovski, N. I.
name: Lein, M.
name: Madsen, L. B.
name: Räsänen, E.
name: Lemell, C.
name: Burgdörfer, J.
name: Arbó, D. G.
name: Tőkési, K.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We present a semiclassical two-step model for strong-field ionization that accounts for path interferences of tunnel-ionized electrons in the ionic potential beyond perturbation theory. Within the framework of a classical trajectory Monte-Carlo representation of the phase-space dynamics, the model employs the semiclassical approximation to the phase of the full quantum propagator in the exit channel. By comparison with the exact numerical solution of the time-dependent Schrödinger equation for strong-field ionization of hydrogen, we show that for suitable choices of the momentum distribution after the first tunneling step, the model yields good quantitative agreement with the full quantum simulation. The two-dimensional photoelectron momentum distributions, the energy spectra, and the angular distributions are found to be in good agreement with the corresponding quantum results. Specifically, the model quantitatively reproduces the fan-like interference patterns in the low-energy part of the two-dimensional momentum distributions as well as the modulations in the photoelectron angular distributions.
description: 31 pages, 7 figures
Mallomonas skvortsovii E. S. Gusev, H. Doan-Nhu, L. Nguyen-Ngoc & D. Kapustin 2016, sp. nov.
Creators: name: Gusev, Evgeniy S.
name: Doan-Nhu, Hai
name: Nguyen-Ngoc, Lam
name: Kapustin, Dmitry A.
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Chromista
Ochrophyta
Chrysophyceae
Synurales
Mallomonadaceae
Mallomonas
Mallomonas skvortsovii

description: Mallomonas skvortsovii E.S. Gusev, H. Doan-Nhu, L. Nguyen-Ngoc & D. Kapustin sp. nov. (Figs 17–20)
Cells dimensions unknown. Scales are large, tripartite. Dome large, with parallel ribs (up to 10), more easily observed with TEM. Body scales suboval, 6.0–6.7 × 3.2–3.5 μm. Apical scale is slightly asymmetrical, 5.4 × 3.0 μm. Proximal border wide, with internal struts. Posterior flange narrow and smooth.Anterior flange with papillae. V-rib is prominent, wide, with internal struts. There is a one single pore at the base of the V-rib. Anterior submarginal rib is absent. Shield with densely and regularly arranged in distinct rows papillae. Papillae are placed in the angles of meshes of the internal reticulation, visible only on TEM images. Cysts and bristles unknown.
 Type: — VIET NAM. Dong Nai Province: Dak Lua swamp in Cat Tien National Park. 11°30’43” N, 107°22’56” E, 10 th of March 2014, leg. E.S. Gusev, sample DL2/3, 10.03.2014, in collection E.S. Gusev. Holotype designated here: Fig. 17 (herbarium IBIW!). Distribution and habitat:— This species was only found at the type locality.
 Etymology:— Named in honor of Boris V. Skvortsov (1896–1980) for his contribution to world phycological research.
 Observations: Mallomonas skvortsovii was found in a Dak Lua swamp with pH=5.2, temperature 24°C and low conductivity values (10 μS cm-1). Scales of this species were very rare in the sample, 1 scale per 4 TEM grids.
description: Published as part of Gusev, Evgeniy S., Doan-Nhu, Hai, Nguyen-Ngoc, Lam & Kapustin, Dmitry A., 2016, Two new species of the genus Mallomonas from the Cat Tien National Park (Viet Nam): Mallomonas distinguenda and Mallomonas skvortsovii, pp. 59-64 in Phytotaxa 273 (1) on page 62, DOI: 10.11646/phytotaxa.273.1.6, http://zenodo.org/record/13658820
Renormalizable Model for Neutrino Mass, Dark Matter, Muon $g-2$ and 750 GeV Diphoton Excess
Creators: name: Okada, Hiroshi
name: Yagyu, Kei
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss a possibility to explain the 750 GeV diphoton excess observed at the LHC in a three-loop neutrino mass model which has a similar structure to the model by Krauss, Nasri and Trodden. Tiny neutrino masses are naturally generated by the loop effect of new particles with their couplings and masses to be of order 0.1-1 and TeV, respectively. The lightest right-handed neutrino, which runs in the three-loop diagram, can be a dark matter candidate. In addition, the deviation in the measured value of the muon anomalous magnetic moment from its prediction in the standard model can be compensated by one-loop diagrams with exotic multi-charged leptons and scalar bosons. For the diphoton event, an additional isospin singlet real scalar field plays the role to explain the excess by taking its mass of 750 GeV, where it is produced from the gluon fusion production via the mixing with the standard model like Higgs boson. We find that the cross section of the diphoton process can be obtained to be a few fb level by taking the masses of new charged particles to be about 375 GeV and related coupling constants to be order 1.
description: 17 pages, 8 figures
Sampling random graph homomorphisms and applications to network data analysis
Creators: name: Lyu, Hanbaek
name: Memoli, Facundo
name: Sivakoff, David
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: A graph homomorphism is a map between two graphs that preserves adjacency relations. We consider the problem of sampling a random graph homomorphism from a graph into a large network. We propose two complementary MCMC algorithms for sampling random graph homomorphisms and establish bounds on their mixing times and the concentration of their time averages. Based on our sampling algorithms, we propose a novel framework for network data analysis that circumvents some of the drawbacks in methods based on independent and neighborhood sampling. Various time averages of the MCMC trajectory give us various computable observables, including well-known ones such as homomorphism density and average clustering coefficient and their generalizations. Furthermore, we show that these network observables are stable with respect to a suitably renormalized cut distance between networks. We provide various examples and simulations demonstrating our framework through synthetic networks. We also \commHL{demonstrate the performance of} our framework on the tasks of network clustering and subgraph classification on the Facebook100 dataset and on Word Adjacency Networks of a set of classic novels.
description: 66 pages, 36 figures, 4 tables
Robust and scalable rf spectroscopy in first-order magnetic sensitive states at second-long coherence time
Creators: name: Yeh, C. -H.
name: Grensemann, K. C.
name: Dreissen, L. S.
name: Fürst, H. A.
name: Mehlstäubler, T. E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Trapped-ion quantum sensors have become highly sensitive tools for the search of physics beyond the Standard Model. Recently, stringent tests of local Lorentz-invariance (LLI) have been conducted with precision spectroscopy in trapped ions. We here elaborate on robust and scalable radio-frequency composite-pulse spectroscopy at second long coherence times in the magnetic sublevels of the long-lived $^{2}F_{7/2}$ state of a trapped $^{172}$Yb$^{+}$ ion. We compare two Ramsey-type composite rf pulse sequences, a generalized spin-echo (GSE) sequence and a sequence based on universal rotations with 10 rephasing pulses (UR10) that decouple the energy levels from magnetic field noise, enabling robust and accurate spectroscopy. Both sequences are characterized theoretically and experimentally in the spin-$1/2$$\ $$^{2}S_{1/2}$ electronic ground state of $^{172}$Yb$^{+}$ and results show that the UR10 sequence is 38 (13) times more robust against pulse duration (frequency detuning) errors than the GSE sequence. We extend our simulations to the eight-level manifold of the $^2F_{7/2}$ state, which is highly sensitive to a possible violation of LLI, and show that the UR10 sequence can be used for high-fidelity Ramsey spectroscopy in noisy environments. The UR10 sequence is implemented experimentally in the $^2F_{7/2}$ manifold and a coherent signal of up to $2.5\,$s is reached. We have implemented the sequence and used it to perform the most stringent test of LLI in the electron-photon sector to date. Due to the robustness of the UR10 sequence, it can be applied on larger ion crystals to improve tests of Lorentz symmetry further. We demonstrate that the sequence can also be used to extract the quadrupole moment of the meta-stable $^{2}F_{7/2}$ state, obtaining a value of $Θ\,=\,-0.0298(38)\,ea^{2}_{0}$ which is in agreement with the value deduced from clock measurements.
description: 19 pages, 7 figures
Edge Universality for non-Hermitian Random Matrices
Creators: name: Cipolloni, Giorgio
name: Erdős, László
name: Schröder, Dominik
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60B20, 15B52

description: We consider large non-Hermitian real or complex random matrices $X$ with independent, identically distributed centred entries. We prove that their local eigenvalue statistics near the spectral edge, the unit circle, coincide with those of the Ginibre ensemble, i.e. when the matrix elements of $X$ are Gaussian. This result is the non-Hermitian counterpart of the universality of the Tracy-Widom distribution at the spectral edges of the Wigner ensemble.
description: Updated references, fixed small typos
Shell model study of first-forbidden beta decay around $^{208}$Pb
Creators: name: Srivastava, P. C.
name: Sharma, S.
name: Kumar, A.
name: Choudhary, P.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: In the present work, we report a systematic theoretical study of the $\log ft$ values for the forbidden $β^-$ decay transitions in the $^{208}$Pb region. For this, we have considered $^{206}$Hg $\rightarrow$ $^{206}$Tl, $^{208}$Hg $\rightarrow$ $^{208}$Tl, $^{206}$Tl $\rightarrow$ $^{206}$Pb and $^{208}$Tl $\rightarrow$ $^{208}$Pb transitions. We have performed shell model calculations using KHH7B interaction in valence shell 58-114 for protons and 100-164 for neutrons by considering ${\it 1p-1h}$ excitations for both protons and neutrons simultaneously for daughter nuclei. This study presents the first shell model results of $β^-$-decay corresponding to the recent experimental data.
description: 4 pages, 1 figure, 1 table, Journal of Physics: Conference Series [28th International Nuclear Physics Conference (INPC 2022) held at Cape Town, South Africa]
Electronic Aromaticity Index for Large Rings
Creators: name: Matito, Eduard
Publisher: name: arXiv
Year: 2015
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We introduce a new electronic aromaticity index, AV1245, consisting in the average of the 4-center MCI values along the ring that keep a positional relationship of 1,2,4,5. AV1245 measures the extent of transferability of the delocalized electrons between bonds 1-2 and 4-5, which is expected to be large in conjugated circuits and, therefore, in aromatic molecules. A new algorithm for the calculation of MCI for large rings is also introduced and used to produce the data for the calibration of the new aromaticity index. AV1245 does not rely on reference values, does not suffer from large numerical precision errors, and it does not present any limitation on the nature of atoms, the molecular geometry or the level of calculation. It is a size-extensive measure with a small computational cost that grows linearly with the number of ring members. Therefore, it is specially suitable to study the aromaticity of large molecular rings as those occurring in belt-shaped Möbius structures or porphyrins.
description: 6 pages, 4 figures, 2 tables
Evolution of Thermally Pulsing Asymptotic Giant Branch Stars V: Constraining the Mass Loss and Lifetimes of Intermediate Mass, Low Metallicity AGB Stars
Creators: name: Rosenfield, Philip
name: Marigo, Paola
name: Girardi, Léo
name: Dalcanton, Julianne J.
name: Bressan, Alessandro
name: Williams, Benjamin F.
name: Dolphin, Andrew
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Thermally-Pulsing Asymptotic Giant Branch (TP-AGB) stars are relatively short lived (less than a few Myr), yet their cool effective temperatures, high luminosities, efficient mass-loss and dust production can dramatically effect the chemical enrichment histories and the spectral energy distributions of their host galaxies. The ability to accurately model TP-AGB stars is critical to the interpretation of the integrated light of distant galaxies, especially in redder wavelengths. We continue previous efforts to constrain the evolution and lifetimes of TP-AGB stars by modeling their underlying stellar populations. Using Hubble Space Telescope (HST) optical and near-infrared photometry taken of 12 fields of 10 nearby galaxies imaged via the ACS Nearby Galaxy Survey Treasury and the near-infrared HST/SNAP follow-up campaign, we compare the model and observed TP-AGB luminosity functions as well as the number ratio of TP-AGB to red giant branch stars. We confirm the best-fitting mass-loss prescription, introduced by Rosenfield et al. 2014, in which two different wind regimes are active during the TP-AGB, significantly improves models of many galaxies that show evidence of recent star formation. This study extends previous efforts to constrain TP-AGB lifetimes to metallicities ranging -1.59 < [Fe/H] < -0.56 and initial TP-AGB masses up to ~ 4 Msun, which include TP-AGB stars that undergo hot-bottom burning.
description: 32 pages, 9 figures, accepted for publication in ApJ
Loops and trees in generic EFTs
Creators: name: Craig, Nathaniel
name: Jiang, Minyuan
name: Li, Ying-Ying
name: Sutherland, Dave
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider aspects of tree and one-loop behavior in a generic 4d EFT of massless scalars, fermions, and vectors, with a particular eye to the high-energy limit of the Standard Model EFT at operator dimensions 6 and 8. First, we classify the possible Lorentz structures of operators and the subset of these that can arise at tree-level in a weakly coupled UV completion, extending the tree/loop classification through dimension 8 using functional methods. Second, we investigate how operators contribute to tree and one-loop helicity amplitudes, exploring the impact of non-renormalization theorems through dimension 8. We further observe that many dimension 6 contributions to helicity amplitudes, including rational parts, vanish exactly at one-loop level. This suggests the impact of helicity selection rules extends beyond one loop in non-supersymmetric EFTs.
description: 29+1 pages, 5 figures, 6 tables
Continuous-variable quantum teleportation with vacuum-entangled Rindler modes
Creators: name: Foo, Joshua
name: Ralph, Timothy C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider a continuous-variable quantum teleportation protocol between a uniformly accelerated sender in the right Rindler wedge, a conformal receiver restricted to the future light cone, and an inertial observer in the Minkowski vacuum. Using a non-perturbative quantum circuit model, the accelerated observer interacts unitarily with the Rindler modes of the field, thereby accessing entanglement of the vacuum as a resource. We find that a Rindler-displaced Minkowski vacuum state prepared and teleported by the accelerated observer appears mixed according to the inertial observer, despite a reduction of the quadrature variances below classical limits. This is a surprising result, since the same state transmitted directly from the accelerated observer appears as a pure coherent state to the inertial observer. The decoherence of the state is caused by an interplay of opposing effects as the acceleration increases: the reduction of vacuum noise in the output state for a stronger entanglement resource, constrained by the amplification of thermal noise due to the presence of Unruh radiation.
description: Corrected typos and higher resolution figures. Close to published version
Epidermal growth factor and the remnant kidney model
Creators: name: Walker., Amanda Mae
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Global Hilbert expansion for the relativistic Vlasov-Maxwell-Boltzmann system
Creators: name: Guo, Yan
name: Xiao, Qinghua
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 76Y05, 35Q20

description: Consider the relativistic Vlasov-Maxwell-Boltzmann system describing the dynamics of an electron gas in the presence of a fixed ion background. Thanks to recent works \cite{Germain-Masmoudi-ASENS-2014, Guo-Ionescu-Pausader-JMP-2014} and \cite{Deng-Ionescu-Pausader-ARMA-2017}, we establish the global-in-time validity of its Hilbert expansion and derive the limiting relativistic Euler-Maxwell system as the mean free path goes to zero. Our method is based on the $L^2-L^{\infty}$ framework and the Glassey-Strauss Representation of the electromagnetic field, with auxiliary $H^1$ estimate and $W^{1,\infty}$ estimates to control the characteristic curves and corresponding $L^{\infty}$ norm.
description: This new version contains correction of errors and typos for published paper (Commun. Math. Phys. 384(1): 341-401,2021)
DynaBench: A benchmark dataset for learning dynamical systems from low-resolution data
Creators: name: Dulny, Andrzej
name: Hotho, Andreas
name: Krause, Anna
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Previous work on learning physical systems from data has focused on high-resolution grid-structured measurements. However, real-world knowledge of such systems (e.g. weather data) relies on sparsely scattered measuring stations. In this paper, we introduce a novel simulated benchmark dataset, DynaBench, for learning dynamical systems directly from sparsely scattered data without prior knowledge of the equations. The dataset focuses on predicting the evolution of a dynamical system from low-resolution, unstructured measurements. We simulate six different partial differential equations covering a variety of physical systems commonly used in the literature and evaluate several machine learning models, including traditional graph neural networks and point cloud processing models, with the task of predicting the evolution of the system. The proposed benchmark dataset is expected to advance the state of art as an out-of-the-box easy-to-use tool for evaluating models in a setting where only unstructured low-resolution observations are available. The benchmark is available at https://anonymous.4open.science/r/code-2022-dynabench/.
description: This version is the final camera-ready version that has been published in the Proceedings of ECML-PKDD 2023
A sharp Bogomolov-type bound
Creators: name: Checcoli, Sara
name: Veneziano, Francesco
name: Viada, Evelina
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G10, 11G50, 11J95

description: We prove a sharp lower bound for the essential minimum of a non-translate variety in certain abelian varieties. This uses and generalises a result of Galateau. Our bound is a new step in direction of an abelian analogue by David and Philippon of a toric conjecture of Amoroso and David and has applications in the framework of anomalous intersections.
description: 18 pages
On homotopy types of Euclidean Rips complexes
Creators: name: Adamaszek, Michal
name: Frick, Florian
name: Vakili, Adrien
Publisher: name: arXiv
Year: 2016
Subjects: subject: Algebraic Topology (math.AT)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics

description: The Rips complex at scale r of a set of points X in a metric space is the abstract simplicial complex whose faces are determined by finite subsets of X of diameter less than r. We prove that for X in the Euclidean 3-space R^3 the natural projection map from the Rips complex of X to its shadow in R^3 induces a surjection on fundamental groups. This partially answers a question of Chambers, de Silva, Erickson and Ghrist who studied this projection for subsets of R^2. We further show that Rips complexes of finite subsets of R^n are universal, in that they model all homotopy types of simplicial complexes PL-embeddable in R^n. As an application we get that any finitely presented group appears as the fundamental group of a Rips complex of a finite subset of R^4. We furthermore show that if the Rips complex of a finite point set in R^2 is a normal pseudomanifold of dimension at least two then it must be the boundary of a crosspolytope.
The energetic and mechanical properties of the rat anococcygeus muscle
Creators: name: Walker., John S.
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
Almost Abelian Lie groups, subgroups and quotients
Creators: name: Rios, Marcelo Almora
name: Avetisyan, Zhirayr
name: Berlow, Katalin
name: Martin, Isaac
name: Rakholia, Gautam
name: Yang, Kelley
name: Zhang, Hanwen
name: Zhao, Zishuo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 22E15, 22E25, 22E40

description: An almost Abelian Lie group is a non-Abelian Lie group with a codimension 1 Abelian normal subgroup. The majority of 3-dimensional real Lie groups are almost Abelian, and they appear in all parts of physics that deal with anisotropic media - cosmology, crystallography etc. In theoretical physics and differential geometry, almost Abelian Lie groups and their homogeneous spaces provide some of the simplest solvmanifolds on which a variety of geometric structures such as symplectic, Kähler, spin etc., are currently studied in explicit terms. Recently, almost Abelian Lie algebras were classified and studied in details. However, a systematic investigation of almost Abelian Lie groups has not been carried out yet, and the present paper is devoted to an explicit description of properties of this wide and diverse class of groups. The subject of investigation are real almost Abelian Lie groups with their Lie group theoretical aspects, such as the exponential map, faithful matrix representations, discrete and connected subgroups, quotients and automorphisms. The emphasis is put on explicit description of all technical details.
Image Labeling by Assignment
Creators: name: Åström, Freddie
name: Petra, Stefania
name: Schmitzer, Bernhard
name: Schnörr, Christoph
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Optimization and Control (math.OC)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 62H35, 65K05, 68U10, 62M40

description: We introduce a novel geometric approach to the image labeling problem. Abstracting from specific labeling applications, a general objective function is defined on a manifold of stochastic matrices, whose elements assign prior data that are given in any metric space, to observed image measurements. The corresponding Riemannian gradient flow entails a set of replicator equations, one for each data point, that are spatially coupled by geometric averaging on the manifold. Starting from uniform assignments at the barycenter as natural initialization, the flow terminates at some global maximum, each of which corresponds to an image labeling that uniquely assigns the prior data. Our geometric variational approach constitutes a smooth non-convex inner approximation of the general image labeling problem, implemented with sparse interior-point numerics in terms of parallel multiplicative updates that converge efficiently.
Quantum theory of Kerr nonlinearity with Rydberg slow light polaritons
Creators: name: Bienias, Przemyslaw
name: Büchler, Hans Peter
Publisher: name: arXiv
Year: 2016
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the propagation of Rydberg slow light polaritons through an atomic medium for intermediate interactions. Then, the dispersion relation for the polaritons is well described by the slow light velocity alone, which allows for an analytical solution for arbitrary shape of the atomic cloud. We demonstrate the connection of Rydberg polaritons to the behavior of a conventional Kerr nonlinearity for weak interactions, and determine the leading quantum corrections for increasing interactions. We propose an experimental setup which allows one to measure the effective two-body interaction potential between slow light polaritons as well as higher body interactions.
Acoustic omni meta-atom for top-down, decoupled access to all octants of a wave parameter space
Creators: name: Koo, Sukmo
name: Cho, Choonlae
name: Jeong, Jun-ho
name: Park, Namkyoo
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The common behavior of a wave is determined by wave parameters of its medium, which are generally associated with the characteristic oscillations of its corresponding elementary particles. In the context of metamaterials, the decoupled excitation of these fundamental oscillations would provide an ideal platform for top-down and reconfigurable access to the entire space of constitutive wave parameters; however, this has remained as a conceivable problem that must be accomplished, after being pointed out by Pendry. Here, by focusing on acoustic metamaterials, we achieve the decoupling of density $ρ$ , modulus B$^{-1}$, and bianisotropy ξ near the Dirac point, by separating the paths of particle momentum to conform to the characteristic oscillations of each macroscopic wave parameter. Independent access to all octants of wave parameter space ($ρ$ , B$^{-1}$, $ξ$) = (+/-,+/-,+/-) is thus realized using a single platform that we call an omni meta-atom; as a building block that achieves top-down access to the target properties of metamaterials. With precision access to the target ($ρ$ , B$^{-1}$, $ξ$ ), we also propose a bianisotropic meta-surface for independent shaping of transmission- and reflection-wave fronts, and a zero-index anisotropic waveguide for pressure-velocity conversion.
Surjective endomorphisms of projective surfaces: the existence of infinitely many dense orbits
Creators: name: Jia, Jia
name: Xie, Junyi
name: Zhang, De-Qi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14J50, 32H50, 37B40, 08A35

description: Let $f \colon X \to X$ be a surjective endomorphism of a normal projective surface. When $\operatorname{deg} f \geq 2$, applying an (iteration of) $f$-equivariant minimal model program (EMMP), we determine the geometric structure of $X$. Using this, we extend the second author's result to singular surfaces to the extent that either $X$ has an $f$-invariant non-constant rational function, or $f$ has infinitely many Zariski-dense forward orbits; this result is also extended to Adelic topology (which is finer than Zariski topology).
description: Minor revision. Final version
Termination of the MRI via parasitic instabilities in core-collapse supernovae: influence of numerical methods
Creators: name: Rembiasz, T.
name: Obergaulinger, M.
name: Cerdá-Durán, P.
name: Aloy, M. Á.
name: Müller, E.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study the influence of numerical methods and grid resolution on the termination of the magnetorotational instability (MRI) by means of parasitic instabilities in three-dimensional shearing-disc simulations reproducing typical conditions found in core-collapse supernovae. Whether or not the MRI is able to amplify weak magnetic fields in this context strongly depends, among other factors, on the amplitude at which its growth terminates. The qualitative results of our study do not depend on the numerical scheme. In all our models, MRI termination is caused by Kelvin-Helmholtz instabilities, consistent with theoretical predictions. Quantitatively, however, there are differences, but numerical convergence can be achieved even at relatively low grid resolutions if high-order reconstruction methods are used.
description: Proceedings of ASTRONUM-2015, to be published in Journal of Physics Conf. Ser; 8 pages, 3 figures
Apresentação do dossiê “Arte, arquitetura e religião no século XX”
Creators: name: Fontes, Paulo F. De Oliveira
name: De Matos, João Norton
name: Da Cunha, João Alves
Publisher: name: Lusitania Sacra
Year: 2023

description: Lusitania Sacra, n. 47 (2023): Arte, arquitetura e religião no século XX
Quasipolynomiality of the Smallest Missing Induced Subgraph
Creators: name: Eppstein, David
name: Lincoln, Andrea
name: Williams, Virginia Vassilevska
Publisher: name: arXiv
Year: 2023
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We study the problem of finding the smallest graph that does not occur as an induced subgraph of a given graph. This missing induced subgraph has at most logarithmic size and can be found by a brute-force search, in an $n$-vertex graph, in time $n^{O(\log n)}$. We show that under the Exponential Time Hypothesis this quasipolynomial time bound is optimal. We also consider variations of the problem in which either the missing subgraph or the given graph comes from a restricted graph family; for instance, we prove that the smallest missing planar induced subgraph of a given planar graph can be found in polynomial time.
description: 10 pages, 1 figure. To appear in J. Graph Algorithms Appl. This version updates an author affiliation
CHAVES, Duarte Nuno, coord. – Conventos franciscanos nos Açores do século XXI. Memórias da Província de S. João Evangelista
Creators: name: Moreira, António Montes
Publisher: name: Lusitania Sacra
Year: 2023

description: Lusitania Sacra, n. 47 (2023): Arte, arquitetura e religião no século XX
On the interpretation and applicability of $κ$-distributions
Creators: name: Lazar, M.
name: Fichtner, H.
name: Yoon, P. H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The generally accepted representation of $κ$-distributions in space plasma physics allows for two different alternatives, namely assuming either the temperature or the thermal velocity to be $κ$-independent. The present paper aims to clarify the issue concerning which of the two possible choices and the related physical interpretation is the correct one. A quantitative comparison of the consequences of the use of both distributions for specific physical systems leads to their correct interpretation. It is found that both alternatives can be realized, but are valid for principally different physical systems. The investigation demonstrates that, before employing one of the two alternatives, one should be conscious about the nature of the physical system one intends to describe, otherwise one would possibly obtain unphysical results.
Thermal Conductivity of Suspended Graphene with Defects
Creators: name: Malekpour, Hoda
name: Ramnani, Pankaj
name: Srinivasan, Srilok
name: Balasubramanian, Ganesh
name: Nika, Denis L.
name: Mulchandani, Ashok
name: Lake, Roger
name: Balandin, Alexander A.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate the thermal conductivity of suspended graphene as a function of the density of defects, ND, introduced in a controllable way. Graphene layers are synthesized using chemical vapor deposition, transferred onto a transmission electron microscopy grid, and suspended over ~7.5-micrometer size square holes. Defects are induced by irradiation of graphene with the low-energy electron beam (20 keV) and quantified by the Raman D-to-G peak intensity ratio. As the defect density changes from 2.0x10^10 cm-2 to 1.8x10^11 cm-2 the thermal conductivity decreases from ~(1.8+/-0.2)x10^3 W/mK to ~(4.0+/-0.2)x10^2 W/mK near room temperature. At higher defect densities, the thermal conductivity reveals an intriguing saturation behavior at a relatively high value of ~400 W/mK. The thermal conductivity dependence on defect density is analyzed using the Boltzmann transport equation and molecular dynamics simulations. The results are important for understanding phonon - point defect scattering in two-dimensional systems and for practical applications of graphene in thermal management.
description: 23 pages, 6 figures
Subcellular localisation and function of the human immunodeficiency virus type 1 accessory protein Vpr
Creators: name: Waldhuber., Megan
Publisher: name: Monash University
Year: 2021

description: This thesis was scanned from the print manuscript for digital preservation and is copyright the author.
 Researchers can access this thesis by asking their local university, institution or public library to
 make a request on their behalf. Monash staff and postgraduate students can use the link in the References field.
LINO, Anderson – D. António de Avis: O filho “bastardo” do Infante D. Luís com a judia Violante Gomes. Diplomacias de Consórcios político-teológicos e a intervenção inquisitorial (Portugal 1578-1640)
Creators: name: Martins, João Furtado
Publisher: name: Lusitania Sacra
Year: 2023

description: Lusitania Sacra, n. 47 (2023): Arte, arquitetura e religião no século XX
Estimation of Flood Flow at Critical Point Aided by QGIS Software
Creators: name: Pizzo, Henrique
name: Martins Galil, Vinícius
name: Ribeiro, Celso Bandeira de Melo
name: Subhi Ibrahim, Safa
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 400513
subject: Water resources engineering

description: The present work presents the determination of the peak flow in a region strongly subject to flooding. This is Severino Meireles street, part of the Independência Stream Hydrographic Basin, in the municipality of Juiz de Fora, Brazil. After a review of the literature on local floods, it is a question of estimating the hydrological flow of floods. The basins contributing to the study site had their characteristic
magnitudes (areas, topographic elevations, lengths of watercourses, etc.) obtained from the use of the QGIS software. The hydraulic drainage capacity of the street gallery in question is also calculated, verifying the condition conducive to the occurrence of floods. Finally, suggestions for mitigating the problem are listed.
Ultralong-range triatomic Rydberg molecules in an electric field
Creators: name: Fernández, Javier Aguilera
name: Schmelcher, Peter
name: González-Férez, Rosario
Publisher: name: arXiv
Year: 2016
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the electronic structure of a triatomic Rydberg molecule formed by a Rydberg atom and two neutral ground-state atoms. Taking into account the $s$-wave and $p$-wave interactions we perform electronic structure calculations and analyze the adiabatic electronic potentials evolving from the Rb$(n=35, l\ge 3)$ Rydberg degenerate manifold. We hereby focus on three different classes of geometries of the Rydberg molecules, including symmetric, asymmetric and planar configurations. The metamorphosis of these potential energy surfaces in the presence of an external electric field is explored.
description: 8 pages, 8 figures
The boundary of linear subvarieties
Creators: name: Benirschke, Frederik
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: We describe the boundary of linear subvarieties in the moduli space of multi-scale differentials. Linear subvarieties are algebraic subvarieties of strata of (possibly) meromorphic differentials that in local period coordinates are given by linear equations. The main example of such are affine invariant submanifolds, that is, closures of $\operatorname{SL}(2,\mathbb{R})$-orbits. We prove that the boundary of any linear subvariety is again given by linear equations in generalized period coordinates of the boundary. Our main technical tool is an asymptotic analysis of periods near the boundary of the moduli space of multi-scale differentials which yields further techniques and results of independent interest.
description: v2: Final version, appeared in Journal of the European Mathematical Society. Various small corrections, additions, and clarifications
Pamphalea bupleurifolia Lessing 1830
Creators: name: Platt, Fernando Henrique
name: Bündchen, Márcia
name: Miotto, Silvia Teresinha Sfoggia
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Asterales
Asteraceae
Pamphalea
Pamphalea bupleurifolia

description: Pamphalea bupleurifolia Lessing (1830: 8)
 Type:— URUGUAY [“Brasilia meridional”], Sello 766 (K000500425!, lectotype, designated here; isolectotype: HAL113163!).
 The species was described based on herbarium material kept at B; ‘ Sellow legit in Brasilia meridionali. (v. sp. s. ∞.)’ was mentioned in the protologue. The material deposited at B [photo F16094!] was destroyed during the World War II. Duplicates of the original material were found at K and HAL. The lectotype designated above corresponds more closely to the original description, and its plant has a greater number of basal leaves. Trujillo et al. (2014) mistakenly designated a neotype for the species name, and the choice of a lectotype has priority over the neotype (Art. 9.19).
description: Published as part of Platt, Fernando Henrique, Bündchen, Márcia & Miotto, Silvia Teresinha Sfoggia, 2016, Nomenclatural notes on Pamphalea (Asteraceae: Nassauvieae), pp. 139-140 in Phytotaxa 273 (2) on page 139, DOI: 10.11646/phytotaxa.273.2.6, http://zenodo.org/record/13658848
ALVES, Herculano – A Bíblia em Portugal: Volume III: A Bíblia nos séculos XVI-XVII
Creators: name: Fernandes, Luis Henrique Menezes
Publisher: name: Lusitania Sacra
Year: 2023

description: Lusitania Sacra, n. 47 (2023): Arte, arquitetura e religião no século XX