cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On local fixed or periodic point properties
Creators: name: Illanes, Alejandro
name: Krupski, Pawł
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37B45 (Primary), 54F15 (Secondary)

description: A space X has the local fixed point property LFPP, (local periodic point property LPPP) if it has an open basis $\mathcal{B}$ such that, for each $B\in \mathcal{B}$, the closure $\overline{B}$ has the fixed (periodic) point property. Weaker versions wLFPP, wLPPP are also considered and examples of metric continua that distinguish all these properties are constructed. We show that for planar or one-dimensional locally connected metric continua the properties are equivalent.
Scalar-Tensor Gravity Cosmology: Noether symmetries and analytical solutions
Creators: name: Paliathanasis, A.
name: Tsamparlis, M.
name: Basilakos, S.
name: Capozziello, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we present a complete Noether Symmetry analysis in the framework of scalar-tensor cosmology. Specifically, we consider a non-minimally coupled scalar field action embedded in the FLRW spacetime and provide a full set of Noether symmetries for related minisuperspaces. The presence of symmetries implies that the dynamical system becomes integrable and then we can compute cosmological analytical solutions for specific functional forms of coupling and potential functions selected by the Noether Approach.
description: 9 pages, accepted for publication by Phys. Rev. D
A new variational method with SPBC and many stable choreographic solutions of the Newtonian 4-body problem
Creators: name: Ouyang, Tiancheng
name: Xie, Zhifu
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 37N05, 70F10, 70H12, 70K20

description: After the existence proof of the first remarkably stable simple choreographic motion-- the figure eight of the planar three-body problem by Chenciner and Montgomery in 2000, a great number of simple choreographic solutions have been discovered numerically but very few of them have rigorous existence proofs and none of them are stable. Most important to astronomy are stable periodic solutions which might actually be seen in some stellar system. A question for simple choreographic solutions on $n$-body problems naturally arises: Are there any other stable simple choreographic solutions except the figure eight? In this paper, we prove the existence of infinitely many simple choreographic solutions in the classical Newtonian 4-body problem by developing a new variational method with structural prescribed boundary conditions (SPBC). Surprisingly, a family of choreographic orbits of this type are all linearly stable. Among the many stable simple choreographic orbits, the most extraordinary one is the stable star pentagon choreographic solution. The star pentagon is assembled out of four pieces of curves which are obtained by minimizing the Lagrangian action functional over the SPBC. We also prove the existence of infinitely many double choreographic periodic solutions, infinitely many non-choreographic periodic solutions and uncountably many quasi-periodic solutions. Each type of periodic solutions have many stable solutions and possibly infinitely many stable solutions.
description: Total 26 pages including 5 pages of figures and references, 12 figures
Intransitive causatives in English: Productivity regularities and asymmetries
Creators: name: Mangialavori Rasia, Eugenia
name: Ausensi, Josep
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: We analyze a construction generally overlooked in the literature, with key implica- tions for of argument structure alternations and VP-internal configuration. This construction involves an object-less causative variant of change-of-state verbs (viz. Intransitive Causative). Unlike better-known monadic (inchoative/unaccusative) alternates, this construction selects for an external argument, an inanimate entity, interpreted by default as probable cause of a change of state. Here, intransitivity correlates with noneventivity. Data suggest that this construction renders an Individual-Level Predication—basically, a subject bearing the potential to eventually trigger an associated change of state as defining property. Based on the pure stative behavior of such a construction (clearly seen in Romance and Greek, cf. Mangialavori Rasia, to appear), we show that eventivity is structurally achieved, and that stative instances of these verbs are possible in various languages (Alexiadou and Iorda ̆chioaia, 2014; Mangialavori Rasia, 2018). Such data argue against the prevalent view that verbs undergoing causative alternation involve change of state or eventive denotation as core part of their lexical meaning and that causative interpretation is a byproduct of transitivity (Hale and Keyser, 2002). In the present paper, we shift the empirical focus to English and note that English shows a productive regularity that deserves to be explored. Visible contrasts with null object constructions and related argument structure alternations (Null/Unspecified Object Alternations, Levin, 1993 i.a.) allowed by these verbs are also revealed.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 2 (2020): Proceedings of Sinn und Bedeutung 24
Stability and Equilibrium Analysis of Laneless Traffic with Local Control Laws
Creators: name: Chavan, Rakesh U.
name: Chakraborty, Debraj
name: Manjunath, D.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Systems and Control (eess.SY)
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this paper, a new model for traffic on roads with multiple lanes is developed, where the vehicles do not adhere to a lane discipline. Assuming identical vehicles, the dynamics is split along two independent directions: the Y-axis representing the direction of motion and the X-axis representing the lateral or the direction perpendicular to the direction of motion. Different influence graphs are used to model the interaction between the vehicles in these two directions. The instantaneous accelerations of each car, in both X and Y directions, are functions of the measurements from the neighbouring cars according to these influence graphs. The stability and equilibrium spacings of the car formation is analyzed for usual traffic situations such as steady flow, obstacles, lane changing and rogue drivers arbitrarily changing positions inside the formation. Conditions are derived under which the formation maintains stability and the desired intercar spacing for each of these traffic events. Simulations for some of these scenarios are included.
description: 8 pages
Assessing the effect of lens mass model in cosmological application with updated galaxy-scale strong gravitational lensing sample
Creators: name: Chen, Yun
name: Li, Ran
name: Shu, Yiping
name: Cao, Xiaoyue
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: By comparing the dynamical and lensing masses of early-type lens galaxies, one can constrain both the cosmological parameters and the density profiles of galaxies. We explore the constraining power on cosmological parameters and the effect of the lens mass model in this method with 161 galaxy-scale strong lensing systems, which is currently the largest sample with both high resolution imaging and stellar dynamical data. We assume a power-law mass model for the lenses, and consider three different parameterizations for $γ$ (i.e., the slope of the total mass density profile) to include the effect of the dependence of $γ$ on redshift and surface mass density. When treating $δ$ (i.e., the slope of the luminosity density profile) as a universal parameter for all lens galaxies, we find the limits on the cosmological parameter $Ω_m$ are quite weak and biased, and also heavily dependent on the lens mass model in the scenarios of parameterizing $γ$ with three different forms. When treating $δ$ as an observable for each lens, the unbiased estimate of $Ω_m$ can be obtained only in the scenario of including the dependence of $γ$ on both the redshift and the surface mass density, that is $Ω_m = 0.381^{+0.185}_{-0.154}$ at 68\% confidence level in the framework of a flat $Λ$CDM model. We conclude that the significant dependencies of $γ$ on both the redshift and the surface mass density, as well as the intrinsic scatter of $δ$ among the lenses, need to be properly taken into account in this method.
description: Accepted for publication in MNRAS; 17 pages, 5 figures, 2 tables
The LPM effect in sequential bremsstrahlung 2: factorization
Creators: name: Arnold, Peter
name: Chang, Han-Chih
name: Iqbal, Shahin
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The splitting processes of bremsstrahlung and pair production in a medium are coherent over large distances in the very high energy limit, which leads to a suppression known as the Landau-Pomeranchuk-Migdal (LPM) effect. In this paper, we continue analysis of the case when the coherence lengths of two consecutive splitting processes overlap (which is important for understanding corrections to standard treatments of the LPM effect in QCD), avoiding soft-gluon approximations. In particular, this paper analyzes the subtle problem of how to precisely separate overlapping double splitting (e.g.\ overlapping double bremsstrahlung) from the case of consecutive, independent bremsstrahlung (which is the case that would be implemented in a Monte Carlo simulation based solely on single splitting rates). As an example of the method, we consider the rate of real double gluon bremsstrahlung from an initial gluon with various simplifying assumptions (thick media; $\hat q$ approximation; large $N_c$; and neglect for the moment of processes involving 4-gluon vertices) and explicitly compute the correction $Δ\,dΓ/dx\,dy$ due to overlapping formation times.
description: 59 pages, 37 figures. Change from v2: a minor typo fixed in eq. (E12c); nothing else affected
Stellar Signatures of AGN Jet Triggered Star Formation
Creators: name: Dugan, Zachary
name: Bryan, Sarah
name: Gaibler, Volker
name: Silk, Joseph
name: Haas, Marcel
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: To investigate feedback between relativistic jets emanating from Active Galactic Nuclei (AGN) and the stellar population of the host galaxy, we analyze the long-term evolution of the galaxy-scale simulations by Gaibler et al. (2012) of jets in massive, gas-rich galaxies at z ~ 2 - 3 and of stars formed in the host galaxies. We find strong, jet-induced differences in the resulting stellar populations of galaxies that host relativistic jets and galaxies that do not, including correlations in stellar locations, velocities, and ages. Jets are found to generate distributions of increased radial and vertical velocities that persist long enough to effectively extend the stellar structure of the host. The jets cause the formation of bow shocks that move out through the disk, generating rings of star formation within the disk. The bow shock often accelerates pockets of gas in which stars form, yielding populations of stars with significant radial and vertical velocities, some of which have large enough velocities to escape the galaxy. These stellar population signatures can serve to identify past jet activity as well as jet-induced star formation.
The prosody of presupposition projection in naturally-occurring utterances
Creators: name: Mahler, Taylor
name: De Marneffe, Marie-Catherine
name: Lai, Catherine
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: In experimental studies, prosodically-marked pragmatic focus has been found to influence the projection of factive presuppositions of utterances like these parents didn’t know the kid was gone (Cummins and Rohde, 2015; Tonhauser, 2016; Djarv and Bacovcin, 2017), supporting question-based analyses of projection (i.a., Abrusán, 2011; Abrusán, 2016; Simons et al., 2017; Beaver et al., 2017). However, no prior work has explored whether this effect extends to naturally-occurring utterances. In a large set of naturally-occurring utterances, we find that prosodically-marked focus influences projection in utterances with factive embedding predicates, but not those with non-factive predicates. We argue that our findings support an account where lexical semantics of the predicate contributes to projection to the extent that they admit QUD alternatives that can be assumed to entail the content of the complement.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 2 (2020): Proceedings of Sinn und Bedeutung 24
Affirming and rejecting assertions in German Sign Language (DGS)
Creators: name: Loos, Cornelia
name: Steinbach, Markus
name: Repp, Sophie
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: Response elements (REs) like English yes and no fulfil two functions. They may affirm or reject a previous utterance, or they may indicate that the response to the previous utterance has positive or negative polarity. In responses to negative sentences, these two functions come apart. Spoken languages investigated so far seem to display different preferences for the interpretation of REs to signal either the positive/negative polarity of the response clause or the affirmation/rejection of the truth of the previous utterance. The present paper investigates the meaning and use of REs in German Sign Language (DGS). We present the results of a discourse completion experiment in DGS, which is the first quantitative study of the response system of a sign language, and provide a preliminary theoretical analysis of this system. Sign languages are of particular interest in this context since they systematically use multiple articulatory channels, which can, in principle, encode truth and polarity at the same time. The results show that DGS employs manual and non-manual REs which encode both truth and polarity, i.e. are ambiguous, as well as REs that encode only truth. The ambiguous REs are used more often to encode truth than polarity, and are rarely disambiguated by simultaneous non-manual REs. Hence, DGS does not use the potential made available by the visual-gestural modality in the domain of response strategies.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 2 (2020): Proceedings of Sinn und Bedeutung 24
Contact representation of short range correlation in light nuclei studied by the High-Momentum Antisymmetrized Molecular Dynamics
Creators: name: Zhao, Qing
name: Lyu, Mengjiao
name: Ren, Zhongzhou
name: Myo, Takayuki
name: Toki, Hiroshi
name: Ikeda, Kiyomi
name: Horiuchi, Hisashi
name: Isaka, Masahiro
name: Yamada, Taiichi
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The high-momentum antisymmetrized molecular dynamics (HMAMD) is a new promising framework with significant analytical simplicity and efficiency inherited from its antisymmetrized molecular dynamics in describing the high momentum correlations in various nuclear states. In the aim of further improving the numerical efficiency for the description of nucleon-nucleon correlation, we introduce a new formulation by including a new Gaussian weighted basis of high momentum pairs in the HMAMD wave function, with which very rapid convergence is obtained in numerical calculation. It is surprising that the very high-momentum components in the new HMAMD basis are found to be almost equivalent to the contact representation of the nucleon-nucleon pairs with very small nucleon-nucleon distance. The explicit formulation for the contact term significantly improves the numerical efficiency of the HMAMD method, which shows the importance of the contact correlation in the formulation of light nuclei.
Design and Performance Evaluation of an Optimized Disk Scheduling Algorithm (ODSA)
Creators: name: Bhoi, Sourav Kumar
name: Panda, Sanjaya Kumar
name: Faruk, Imran Hossain
Publisher: name: arXiv
Year: 2014
Subjects: subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences

description: Management of disk scheduling is a very important aspect of operating system. Performance of the disk scheduling completely depends on how efficient is the scheduling algorithm to allocate services to the request in a better manner. Many algorithms (FIFO, SSTF, SCAN, C-SCAN, LOOK, etc.) are developed in the recent years in order to optimize the system disk I/O performance. By reducing the average seek time and transfer time, we can improve the performance of disk I/O operation. In our proposed algorithm, Optimize Disk Scheduling Algorithm (ODSA) is taking less average seek time and transfer time as compare to other disk scheduling algorithms (FIFO, SSTF, SCAN, C-SCAN, LOOK, etc.), which enhances the efficiency of the disk performance in a better manner.
description: 8 pages, 26 figures
Dynamics of compact binary systems in scalar-tensor theories: I. Equations of motion to the third post-Newtonian order
Creators: name: Bernard, Laura
Publisher: name: arXiv
Year: 2018
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Scalar-tensor theories are one of the most natural and well-constrained alternative theories of gravity, while still allowing for significant deviations from general relativity. We present the equations of motion of nonspinning compact binary systems at the third post-Newtonian (PN) order in massless scalar-tensor theories. We adapt the Fokker action of point particles in harmonic coordinates in general relativity to the specificities of scalar-tensor theories. We use dimensional regularisation to treat both the infrared and ultraviolet divergences, and we consistently include the tail effects that contribute by a non-local term to the dynamics. This work is crucial in order to compute the scalar gravitational waveform and the energy flux at 2PN order.
description: 24 pages, matches the published version, typos corrected
Moduli of $G$-covers of curves: geometry and singularities
Creators: name: Galeotti, Mattia
Publisher: name: arXiv
Year: 2019
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In a recent paper Chiodo and Farkas described the singular locus and the locus of non-canonical singularities of the moduli space of level curves. In this work we generalize their results to the moduli space $\overline{\mathcal R}_{g,G}$ of curves with a $G$-cover for any finite group $G$. We show that non-canonical singularities are of two types: $T$-curves, that is singularities lifted from the moduli space $\overline{\mathcal M}_g$ of stable curves, and $J$-curves, that is new singularities entirely characterized by the dual graph of the cover. Finally, we prove that in the case $G=S_3$, the $J$-locus is empty, which is the first fundamental step in evaluating the Kodaira dimension of $\overline{\mathcal R}_{g,S_3}$.
description: 36 pages. arXiv admin note: text overlap with arXiv:1504.00568
Telmatogeton japonicus Tokunaga 1933
Creators: name: Kakkonen, Jenni E.
name: Worsfold, Tim M.
name: Ashelby, Christopher W.
name: Taylor, Andrea
name: Beaton, Katy
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Chironomidae
Telmatogeton
Telmatogeton japonicus

description: (9) Telmatogeton japonicus Tokunaga, 1933
Status in U.K. – non-native.
Larvae of non-biting midges, Chironomidae, have been consistently recorded from samples throughout the monitoring programme but they are not identified to species since pupae or adults are usually required to provide a definitive identification. The non-native Telmatogeton japonicus was recorded in Co. Clare, Ireland in 1999 by Murray (2000) and in Wales by Murray (2013). Langton and Hancock (2013) provided records of two Telmatogeton species from Scotland: T. japonicus from St Kilda and the closely related T. murrayi Saether, 2009 from Shetland. This latter species was described from Iceland based on material originally identified as T. japonicus by Murray (1999) but the taxonomic status of the species is uncertain and requires investigation (D. Murray, pers. comm.).
Telmatogeton japonicus was first recorded in Orkney in 2015 by L. Johnson (identity confirmed by P.H. Langton), based on adult specimens. Pupae from scrape samples collected in Gutter Sound in 2017 under the current sampling programme were also identified as belonging to T. japonicus using Langton and Visser (2003). It is, however, acknowledged that the pupa of T. murrayi is currently unknown and, since T. murrayi is recorded from Shetland (Langton and Hancock 2013), it is conceivable that the material could belong to that species. Nevertheless, based on the available information, in keeping with the previous Orcadian record, the present pupal records are retained as T. japonicus pending a formal review of T. murrayi.
Adults of T. japonicus are relatively short lived whilst the larvae are commonly regarded as members of the fouling community, indicating that larval transport is the species’ most likely dispersal mechanism over large distances. Failla et al. (2015) state that long-range movements of chironomids would be nearly impossible without human or animal assistance and the introduction to Europe is thought to have occurred with shipping from Japan (Brodin and Andersson 2008; Raunio et al. 2009; Failla et al. 2015). Dispersal within Europe may be aided by offshore structures such as navigation buoys and windfarm pilings (Kerckhof et al. 2007; Brodin and Andersson 2008); T. japonicus was not recorded on such structures in Orkney by Want et al. (2017) but sampling within a particular season would have been necessary to obtain the pupae required for identification.
description: Published as part of Kakkonen, Jenni E., Worsfold, Tim M., Ashelby, Christopher W., Taylor, Andrea & Beaton, Katy, 2019, The value of regular monitoring and diverse sampling techniques to assess aquatic non-native species: a case study from Orkney, pp. 46-79 in Management of Biological Invasions 10 (1) on page 60, DOI: 10.3391/mbi.2019.10.1.04, http://zenodo.org/record/11969078
UHg_{3} - A Heavy Fermion Antiferromagnet Similar to U_{2}Zn_{17} and UCd_{11}
Creators: name: Kim, J. S.
name: Stewart, G. R.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Heavy Fermion physics deals with the ground state formation and interactions in f-electron materials where the electron effective masses are extremely large, more than 100 times the rest mass of an electron. The details of how the f-electrons correlate at low temperature to become so massive lacks a coherent theory, partially because so few materials display this heavy behavior and thus global trends remain unclear. UHg_{3} is now found experimentally to be a heavy Fermion antiferromagnet, just as are all the other U_{x}M_{y} compounds with the metal M being in column II B (filled d electron shells) in the periodic table (Zn/Cd/Hg) and the spacing between Uranium ions being greater than the Hill limit of 3.5 Angstroms. This result that, independent of the structure of these U_{x}M_{y}, M=Zn/Cd/Hg, compounds and independent of the value of their Uranium Uranium spacings (ranging from 4.39 to 6.56 Angstroms), all exhibit heavy Fermion antiferromagnetism, is a clear narrowing of the parameters important for understanding the formation of this ground state. The sequence of antiferromagnetic transition temperatures, T_{Neel}, of 9.7 K, 5.0 K, and 2.6 K for U_{x}M_{y} as the metal M varies down column II B (Zn/Cd/Hg) indicates an interesting regularity for the antiferromagnetic coupling strength.
description: accepted in Phys. Rev. B (Rapid Communications)
A propositionalist semantics for imagination and depiction reports
Creators: name: Liefke, Kristina
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: We present a formal semantics for physical and mental depiction reports (e.g. Penny is painting a penguin, Uli is imagining a unicorn) that interprets the complements of these reports as propositionally coded situations. Our semantics improves upon Zimmermann’s (2016) property-based semantics for such reports (see Zimmermann, 1993) by blocking unwarranted inferences to a common objective and by capturing the semantic interaction of DPs and CPs in depiction complements. At the same time, it preserves the merits of Zimmermann’s semantics, especially the compositional interpretation of depiction reports and the ability to account for missing de dicto-readings of reports with a strong quantificational object DP. Our semantics shows that – contrary to the received view (e.g. Forbes, 2006; Zimmermann, 2016) – depiction complements are not evidence against a propositionalist analysis of attitude complements.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 1 (2020): Proceedings of Sinn und Bedeutung 24
The Hilbert Property for integral points of affine smooth cubic surfaces
Creators: name: Coccia, Simone
Publisher: name: arXiv
Year: 2018
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper we prove that the set of $S$-integral points of the smooth cubic surfaces in $\mathbb{A}^3$ over a number field $k$ is not thin, for suitable $k$ and $S$. As a corollary, we obtain results on the complement in $\mathbb{P}^2$ of a smooth cubic curve, improving on Beukers' proof that the $S$-integral points are Zariski dense, for suitable $S$ and $k$. With our method we reprove Zariski density, but our result is more powerful since it is a stronger form of Zariski density. We moreover prove that the rational integer points on the Fermat cubic surface $x^3+y^3+z^3=1$ form a non-thin set and we link our methods to previous results of Lehmer, Miller-Woollett and Mordell.
description: 18 pages
Quantum information processing with nuclear spins mediated by a weak-mechanically controlled electron spin
Creators: name: Su, Wan-Jun
name: Ye, Guang-Zheng
name: Wu, Ya-Dong
name: Yang, Zhen-Biao
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme to achieve nuclear-nuclear indirect interactions mediated by a mechanically driven nitrogen-vacancy (NV) center in diamond. Here we demonstrate two-qubit entangling gates and quantum-state transfer between two carbon nuclei. When dipole-dipole interaction strength is much larger than the driving field strength, the scheme is robust against decoherence caused by coupling between the NV center (nuclear spins) and the environment. Conveniently, precise control of dipole coupling is not required so this scheme is insensitive to fluctuating positions of the nuclear spins and the NV center. Our scheme provides a general blueprint for multi-nuclear-spin gates and for multi-party communication.
description: 15 pages,7 figures
Shapes of magnetic monopoles in effective $SU(2)$ models
Creators: name: Beneš, Petr
name: Blaschke, Filip
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We present a systematic exploration of a general family of effective $SU(2)$ models with an adjoint scalar. First, we discuss a redundancy in this class of models and use it to identify seemingly different, yet physically equivalent models. Next, we construct the Bogomol'nyi-Prasad-Sommerfield (BPS) limit and derive analytic monopole solutions. In contrast to the 't Hooft-Polyakov monopole, included here as a special case, these solutions tend to exhibit more complex energy density profiles. Typically, we obtain monopoles with a hollow cavity at their core where virtually no energy is concentrated; accordingly, most of the monopole's energy is stored in a spherical shell around its core. Moreover, the shell itself can be structured, with several "sub-shells". A recipe for the construction of these analytic solutions is presented.
description: 13 pages, 4 figures; revised version published in PRD
Vietnamese subcomparatives, the grammar of degrees, and comparative deletion
Creators: name: Lemon, Tyler
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: Beck et al. (2009) conducted a cross-linguistic survey of degree constructions and proposed three parameters to classify languages according to the constructions they allow and their available interpretations: 1. whether a language has degrees in its semantics; 2. whether a language has degree abstraction; and 3. whether a language allows the degree argument position of a gradable predicate to be overtly filled. This paper provides novel data from Vietnamese that test the predictions of these parameters. Languages with clausal comparatives and a positive setting for these parameters should allow subcomparatives. This paper shows that Vietnamese is such a language, but despite this, many subcomparatives are ungrammatical. Further examination of the data reveals a crucial generalization: a predicate’s ability to remain in the standard of a subcomparative is linked to its ability to interact with nhiều ‘much, many’. I propose that this generalization can be captured by positing that degrees combine directly with some Vietnamese predicates, while in other cases degrees combine with nhiều or its silent counterpart μ before combining with predicates, an idea inspired by Bresnan (1973), Grano and Kennedy (2012) and Wellwood (2012). I also propose a mandatory deletion operation that occurs in the standards of Vietnamese comparatives, forcing predicates to elide when they combine directly with degrees but allowing them to remain overt when degrees must first combine with nhiều/μ.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 1 (2020): Proceedings of Sinn und Bedeutung 24
Segmentation of drone collision hazards in airborne RADAR point clouds using PointNet
Creators: name: Arroyo, Hector
name: Keir, Paul
name: Angus, Dylan
name: Matalonga, Santiago
name: Georgiev, Svetlozar
name: Goli, Mehdi
name: Dooly, Gerard
name: Riordan, James
Publisher: name: University of Limerick
Year: 2024
Subjects: classificationCode: 40
subject: Engineering

description: The integration of drones into shared airspace for beyond visual line of sight (BVLOS) operations presents significant challenges but holds transformative potential for sectors like transportation, construction, energy and defence. A prerequisite for this integration is equipping drones with enhanced situational awareness to ensure collision avoidance and safe operations. Current approaches mainly target single object detection or classification, or simpler sensing outputs that offer limited perceptual understanding and lack the rapid end-to-end processing needed to convert sensor data into safety-critical insights. In contrast, our study leverages radar technology for novel end-to-end semantic segmentation of aerial point clouds to simultaneously identify multiple collision hazards. By adapting and optimizing the PointNet architecture and integrating aerial domain insights, our framework distinguishes five distinct classes: mobile targets like drones (DJI M300 and DJI Mini) and airplanes (Ikarus C42), and static returns (ground and infrastructure) which results in enhanced situational awareness for drones. To our knowledge, this is the first approach addressing simultaneous identification of multiple collision threats in an aerial setting, achieving a robust 94% accuracy. This work highlights the potential of radar technology to advance situational awareness in drones, facilitating safe and efficient BVLOS operations.
Generalized Calabi type Kahler surfaces
Creators: name: Jelonek, Włodzimierz
name: Mulawa, Ewelina
Publisher: name: arXiv
Year: 2019
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53B21, 53B35, 53C25

description: In this paper we give classification of Kähler surfaces of generalized Calabi type.
description: 15 pages. arXiv admin note: text overlap with arXiv:1802.10470
Decay properties of the $X(3872)$ through the Fierz rearrangement
Creators: name: Chen, Hua-Xing
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We systematically construct all the tetraquark currents of $J^{PC} = 1^{++}$ with the quark configurations $[cq][\bar c \bar q]$, $[\bar c q][\bar q c]$, and $[\bar c c][\bar q q]$ ($q=u/d$). Their relations are derived using the Fierz rearrangement of the Dirac and color indices, through which we study decay properties of the $X(3872)$ under both the compact tetraquark and hadronic molecule interpretations. We propose to search for the $X(3872) \rightarrow χ_{c0} π$, $η_c ππ$, and $χ_{c1} ππ$ decay processes in particle experiments.
description: 18 pages, 4 figures, 2 tables, revised version to be published in Commun. Theor. Phys. arXiv admin note: text overlap with arXiv:1910.03269, arXiv:2103.08586
Binarity in Carbon-Enhanced Metal-Poor stars
Creators: name: Starkenburg, Else
name: Shetrone, Matthew D.
name: McConnachie, Alan W.
name: Venn, Kim A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A substantial fraction of the lowest metallicity stars show very high enhancements in carbon. It is debated whether these enhancements reflect the stars' birth composition, or if their atmospheres were subsequently polluted, most likely by accretion from an AGB binary companion. Here we investigate and compare the binary properties of three carbon-enhanced sub-classes: The metal-poor CEMP-s stars that are additionally enhanced in barium; the higher metallicity (sg)CH- and Ba II stars also enhanced in barium; and the metal-poor CEMP-no stars, not enhanced in barium. Through comparison with simulations, we demonstrate that all barium-enhanced populations are best represented by a ~100% binary fraction with a shorter period distribution of at maximum ~20,000 days. This result greatly strengthens the hypothesis that a similar binary mass transfer origin is responsible for their chemical patterns. For the CEMP-no group we present new radial velocity data from the Hobby-Eberly Telescope for 15 stars to supplement the scarce literature data. Two of these stars show indisputable signatures of binarity. The complete CEMP-no dataset is clearly inconsistent with the binary properties of the CEMP-s class, thereby strongly indicating a different physical origin of their carbon enhancements. The CEMP-no binary fraction is still poorly constrained, but the population resembles more the binary properties in the Solar Neighbourhood.
description: 13 pages, 7 figures, accepted for publication in MNRAS
$μ_p$- and $α_p$-actions on K3 surfaces in characteristic $p$
Creators: name: Matsumoto, Yuya
Publisher: name: arXiv
Year: 2018
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14J28 (Primary) 14L15, 14L30 (Secondary)

description: We consider $μ_p$- and $α_p$-actions on RDP K3 surfaces (K3 surfaces with rational double point singularities allowed) in characteristic $p > 0$. We study possible characteristics, quotient surfaces, and quotient singularities. It turns out that these properties of $μ_p$- and $α_p$-actions are analogous to those of $\mathbb{Z}/l\mathbb{Z}$-actions (for primes $l \neq p$) and $\mathbb{Z}/p\mathbb{Z}$-quotients respectively. We also show that conversely an RDP K3 surface with a certain configuration of singularities admits a $μ_p$- or $α_p$- or $\mathbb{Z}/p\mathbb{Z}$-covering by a "K3-like" surface, which is often an RDP K3 surface but not always, as in the case of the canonical coverings of Enriques surfaces in characteristic $2$.
description: 43 pages, comments welcome / v2: Section 6 simplified. Construction of Theorem 7.3(2) changed accordingly. Non-existence of $D_8^1$ and $E_8^1$ moved to arXiv:1907.04686. / v3: Presentation improved. / v4: Added non-existence of $\alpha_p$-actions for $p=13,17,19$. Reorganized Lem 6.3-6.4 according to the change on arXiv:1907.04686. Strengthened Cor 3.5 and Prop 4.1 slightly / v5: Minor revision
Calabi-Yau properties of Postnikov diagrams
Creators: name: Pressland, Matthew
Publisher: name: arXiv
Year: 2019
Subjects: subject: Representation Theory (math.RT)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 16G20 (Primary) 13F60, 14M15, 18E10, 18E30 (Secondary)

description: We show that the dimer algebra of a connected Postnikov diagram in the disc is bimodule internally 3-Calabi-Yau in the sense of the author's earlier work. As a consequence, we obtain an additive categorification of the cluster algebra associated to the diagram, which (after inverting frozen variables) is isomorphic to the homogeneous coordinate ring of a positroid variety in the Grassmannian by a recent result of Galashin and Lam. We show that our categorification can be realised as a full extension closed subcategory of Jensen-King-Su's Grassmannian cluster category, in a way compatible with their bijection between rank 1 modules and Plücker coordinates.
description: 29 pages, comments welcome. v2: significantly revised and expanded, new results on cluster characters and comparison to Jensen-King-Su's Grassmannian cluster category. v3: final version, to appear in Forum Math. Sigma
Extent scales are licensed by atomic Incremental Theme objects: evidence from begin DP
Creators: name: Kwapiszewski, Arkadiusz
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: Dynamic event predicates denote ordered change in some scalar property corresponding to the theme participant. In particular, Change of State predicates map onto property scales (e.g. TEMPERATURE), while Incremental Theme predicates are measured out by the extent of their objects. In terms of VP composition, Rappaport Hovav (2008) proposes that property scales are hard-wired into the lexical semantics of verbs (e.g. heat), whereas extent scales are licensed by Incremental Theme objects. In this paper, I provide new evidence for this hypothesis. The relevant data come from VPs like begin the book, which have only an underspecified Incremental Theme reading. I then turn to examples like begin eight films, which are obligatorily distributive. I use this fact to argue for an even stronger hypothesis: extent scales are licensed by atomic Incremental Themes.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 1 (2020): Proceedings of Sinn und Bedeutung 24
A Group based Time Quantum Round Robin Algorithm using Min-Max Spread Measure
Creators: name: Panda, Sanjaya Kumar
name: Dash, Debasis
name: Rout, Jitendra Kumar
Publisher: name: arXiv
Year: 2014
Subjects: subject: Operating Systems (cs.OS)
subject: FOS: Computer and information sciences

description: Round Robin (RR) Scheduling is the basis of time sharing environment. It is the combination of First Come First Served (FCFS) scheduling algorithm and preemption among processes. It is basically used in a time sharing operating system. It switches from one process to another process in a time interval. The time interval or Time Quantum (TQ) is fixed for all available processes. So, the larger process suffers from Context Switches (CS). To increase efficiency, we have to select different TQ for processes. The main objective of RR is to reduce the CS, maximize the utilization of CPU and minimize the turn around and the waiting time. In this paper, we have considered different TQ for a group of processes. It reduces CS as well as enhancing the performance of RR algorithm. TQ can be calculated using min-max dispersion measure. Our experimental analysis shows that Group Based Time Quantum (GBTQ) RR algorithm performs better than existing RR algorithm with respect to Average Turn Around Time (ATAT), Average Waiting Time (AWT) and CS.
description: 7 pages, 16 figures
Condition C effects in VP fronting constructions and the mode of semantic composition
Creators: name: Kusliy, Petr
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: The paper studies Condition C effects in VP fronting constructions. The author explores new as well as known data that cannot be accounted for by current theories of reconstruction. He explores the mode of semantic composition by which the fronted verb composes with its sister in cases where Condition C effects are triggered and obviated. The author proposes that Condition C effects are triggered if a potential trigger inside a fronted VP is argument to a predicate that describes a situation that is identical to or co-varies with the Austinian topic situation described by the assertive content of the whole sentence.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 1 (2020): Proceedings of Sinn und Bedeutung 24
Energy condition bounds on $f(Q)$ model parameters in a curved FLRW universe
Creators: name: Subramaniam, Ganesh
name: De, Avik
name: Loo, Tee-How
name: Goh, Yong Kheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this exclusive study of the modified $f(Q)$ theory of gravity in the open and closed type Friedmann-Lemaître-Robertson-Walker (FLRW) universe model, we impose some constraints from the classical energy conditions. The viable range of parameter $β$ for two different $f(Q)$ models, $f(Q)=Q+βQ^2$ and $f(Q)=Q+β\sqrt{-Q}$, are analyzed in details and the related cosmological implications are discussed. Violation of effective strong energy condition is resulting into late-time acceleration of the Universe. Present observational values of Hubble parameter and deceleration parameter are used to constrain the parameters.
description: Accepted for publication in Physics of the Dark Universe
Reverse sobel sequences and the dissimilarity of antecedent worlds
Creators: name: Krassnig, David
Publisher: name: Proceedings of Sinn und Bedeutung
Year: 2020

description: We have conducted an acceptability judgement experiment to examine two hypotheses related to the felicity of reverse Sobel sequences (rSS). The first hypothesis was based upon Lewis’ (2018) relevance-based variably-strict semantics: If two rSS are identical except for their respective difference in dissimilarity between their antecedent worlds, then the rSS with a higher degree of dissimilarity should be, on average, more acceptable. Our results, however, seem to support this hypothesis only weakly and appear more contradictory than supportive to the model behind it: Any kind of clear-cut dissimilarity will render an rSS felicitous, so long as its conditionals are counterfactual by nature. The second hypothesis, that rSS whose domains of quantification are entirely disjoint should be just as acceptable as regular utterances, was quasi-confirmed. Whilst a significant difference to the control items was found, these rSS differ only minimally in average acceptability and are the highest rated rSS so far. We therefore explain the slight, statistically significant decrease in acceptability as a result of the markedness of rSS structures. Finally, we provide two analyses to account for the data gathered. First, one modification of Lewis’ (2018) account, where we argue that relevance may not increase closeness beyond the levels set forth by worlds similarity. Then, with the second account, we attempt to motivate the need for and the pragmatic contribution of contrastive stress with regards to rSS, using Ebert et al.’s (2008) assumption that antecedents represent their conditional’s aboutness topic – thereby deriving contrastive topic with regard to the two sets of antecedent worlds.
description: Proceedings of Sinn und Bedeutung, Vol 24 No 1 (2020): Proceedings of Sinn und Bedeutung 24
Large time asymptotics for a cubic nonlinear Schrödinger system in one space dimension, II
Creators: name: Li, Chunhua
name: Nishii, Yoshinori
name: Sagawa, Yuji
name: Sunagawa, Hideaki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35Q55, 35B40

description: This is a sequel to the paper "Large time asymptotics for a cubic nonlinear Schrödinger system in one space dimension" by the same authors. We continue to study the Cauchy problem for the two-component system of cubic nonlinear Schrödinger equations in one space dimension. We provide criteria for large time decay or non-decay in $L^2$ of the small amplitude solutions in terms of the Fourier transforms of the initial data.
description: 6 pages
Dynamics of eye-hand coordination are flexibly preserved in eye-cursor coordination during an online, digital, object interaction task
Creators: name: Bertrand, Jennifer K
name: Chapman, Craig S
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: Do patterns of eye-hand coordination observed during real-world object interactions apply to digital, screen-based object interactions? We adapted a real-world object interaction task (physically transferring cups in sequence about a tabletop) into a two-dimensional screen-based task (dragging-and-dropping circles in sequence with a cursor). We collected gaze (with webcam eye-tracking) and cursor position data from 51 fully-remote, crowd-sourced participants who performed the task on their own computer. We applied real-world time-series data segmentation strategies to resolve the self-paced movement sequence into phases of object interaction and rigorously cleaned the webcam eye-tracking data. In this preliminary investigation, we found that: 1) real-world eye-hand coordination patterns persist and adapt in this digital context, and 2) remote, online, cursor-tracking and webcam eye-tracking are useful tools for capturing visuomotor behaviours during this ecologically-valid human-computer interaction task. We discuss how these findings might inform design principles and further investigations into natural behaviours that persist in digital environments.