cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
EuclidNet: Deep Visual Reasoning for Constructible Problems in Geometry
Creators: name: Wong, Man Fai
name: Qi, Xintong
name: Tan, Chee Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this paper, we present a deep learning-based framework for solving geometric construction problems through visual reasoning, which is useful for automated geometry theorem proving. Constructible problems in geometry often ask for the sequence of straightedge-and-compass constructions to construct a given goal given some initial setup. Our EuclidNet framework leverages the neural network architecture Mask R-CNN to extract the visual features from the initial setup and goal configuration with extra points of intersection, and then generate possible construction steps as intermediary data models that are used as feedback in the training process for further refinement of the construction step sequence. This process is repeated recursively until either a solution is found, in which case we backtrack the path for a step-by-step construction guide, or the problem is identified as unsolvable. Our EuclidNet framework is validated on complex Japanese Sangaku geometry problems, demonstrating its capacity to leverage backtracking for deep visual reasoning of challenging problems.
description: Accepted by 2nd MATH-AI Workshop at NeurIPS'22
Hierarchical learning, forecasting coherent spatio-temporal individual and aggregated building loads
Creators: name: Leprince, Julien
name: Madsen, Henrik
name: Møller, Jan Kloppenborg
name: Zeiler, Wim
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Optimal decision-making compels us to anticipate the future at different horizons. However, in many domains connecting together predictions from multiple time horizons and abstractions levels across their organization becomes all the more important, else decision-makers would be planning using separate and possibly conflicting views of the future. This notably applies to smart grid operation. To optimally manage energy flows in such systems, accurate and coherent predictions must be made across varying aggregation levels and horizons. With this work, we propose a novel multi-dimensional hierarchical forecasting method built upon structurally-informed machine-learning regressors and established hierarchical reconciliation taxonomy. A generic formulation of multi-dimensional hierarchies, reconciling spatial and temporal hierarchies under a common frame is initially defined. Next, a coherency-informed hierarchical learner is developed built upon a custom loss function leveraging optimal reconciliation methods. Coherency of the produced hierarchical forecasts is then secured using similar reconciliation technics. The outcome is a unified and coherent forecast across all examined dimensions. The method is evaluated on two different case studies to predict building electrical loads across spatial, temporal, and spatio-temporal hierarchies. Although the regressor natively profits from computationally efficient learning, results displayed disparate performances, demonstrating the value of hierarchical-coherent learning in only one setting. Yet, supported by a comprehensive result analysis, existing obstacles were clearly delineated, presenting distinct pathways for future work. Overall, the paper expands and unites traditionally disjointed hierarchical forecasting methods providing a fertile route toward a novel generation of forecasting regressors.
Quasi-extremal primordial black holes are a viable dark matter candidate
Creators: name: Pacheco, Jose A. de Freitas
name: Kiritsis, Elias
name: Lucca, Matteo
name: Silk, Joseph
Publisher: name: arXiv
Year: 2023
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Black hole evaporation is generally considered inevitable for low-mass black holes, yet there is no confirmation of this remarkable hypothesis. Here, we propose a phenomenological model that appeals to the possible survival of light quasi-extremal primordial black holes as a significant dark matter component and show that the related cosmological and astrophysical constraints disappear for reasonable degrees of quasi-extremality. The results obtained are general, conservative and should be taken as a proof of principle for future, model-specific analyses.
description: 13 pages, 2 figures
A note on $α$-permanent and loop soup
Creators: name: Li, Xiaodan
name: Zheng, Yushu
Publisher: name: arXiv
Year: 2022
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: Primary 15A15, 60G55, 60G60

description: In this paper, it is shown that $α$-permanent in algebra is closely related to loop soup in probability. We give explicit expansions of $α$-permanents of the block matrices obtained from matrices associated to $*$-forests, which are a special class of matrices containing tridiagonal matrices. It is proved in two ways, one is the direct combinatorial proof, and the other is the probabilistic proof via loop soup.
description: 9 pages, 1 figure; to appear in Electronic Communications in Probability
The payload of the Lunar Gravitational-wave Antenna
Creators: name: van Heijningen, Joris
name: ter Brake, Marcel
name: Gerberding, Oliver
name: Subrahmanya, Shreevathsa Chalathadka
name: Harms, Jan
name: Bian, Xing
name: Gatti, Alberto
name: Zeoli, Morgane
name: Bertolini, Alessandro
name: Collette, Christophe
name: Perali, Andrea
name: Pinto, Nicola
name: Sharma, Meenakshi
name: Tavernier, Filip
name: Rezvani, Javad
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: The toolbox to study the Universe grew on 14 September 2015 when the LIGO-Virgo collaboration heard a signal from two colliding black holes between 30-250 Hz. Since then, many more gravitational waves have been detected as detectors increased sensitivity. However, the current detector design sensitivity curves still have a lower cut-off of 10 Hz. To detect even lower-frequency gravitational-wave signals, the Lunar Gravitational-wave Antenna will use an array of seismic stations in a permanently shadowed crater. It aims to detect the differential between the elastic response of the Moon and the suspended inertial sensor proof mass motion induced by gravitational waves. A cryogenic superconducting inertial sensor is under development that aims for fm/rtHz sensitivity or better down to 1 Hz and is planned to be deployed in seismic stations. Here, we describe the current state of research towards the inertial sensor, its applications and additional auxiliary technologies in the payload of the lunar gravitational-wave detection mission.
Experimental creation and characterization of random potential energy landscapes exploiting speckle patterns
Creators: name: Bewerunge, J.
name: Egelhaaf, S. U.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Optics (physics.optics)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The concept of potential energy landscapes is applied in many areas of science. We experimentally realize a random potential energy landscape (rPEL) to which colloids are exposed. This is achieved exploiting the interaction of matter with light. The optical set-up is based on a special diffuser, which creates a top-hat beam containing a speckle pattern. This is imposed on colloids. The effect of the speckle pattern on the colloids can be described by a rPEL. The speckle pattern as well as the rPEL are quantitatively characterized. The distributions of both, intensity and potential energy values, can be approximated by Gamma distributions. They can be tuned from exponential to approximately Gaussian with variable standard deviation, which determines the contrast of the speckles and the roughness of the rPEL. Moreover, the characteristic length scales, e.g. the speckle size, can be controlled. By rotating the diffuser, furthermore, a flat potential can be created and hence only radiation pressure exerted on the particles.
description: The following article has been accepted by Physical Review A. It is published, and can be found at http://journals.aps.org/pra/abstract/10.1103/PhysRevA.93.013806
Designing in-plane heterostructures of quantum spin hall insulators from first principles: 1T'-MoS2 with adsorbates
Creators: name: Olsen, Thomas
Publisher: name: arXiv
Year: 2016
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Interfaces between normal and topological insulators are bound to host metallic states that are protected by time-reversal symmetry and are therefore robust against disorder and interface reconstruction. Two-dimensional topological insulators (quantum spin Hall insulators) offer a unique opportunity to change the local topology by adsorption of atoms or molecules and thus comprise an ideal platform for designing topological heterostructures. Here, we apply first principles calculations to show that the quantum spin Hall insulator 1T'-MoS2 exhibits a phase transition to a trivial insulator upon adsorption of various atoms. It is then demonstrated that one-dimensional metallic boundary states indeed arise in a ribbon geometry of alternating regions with and without adsorbed oxygen and that these boundary states generically constitute simple linear connections between valence and conduction bands. This is in sharp contrast to topological edge states that typically exhibit strong dispersion that are sensitively to a particular edge termination. The heterostructure is also suggestive of a simple design of one-dimensional metallic networks in sheets of 1T'-MoS2.
description: 9 pages
Clonal diversification and histogenesis of malignant germ cell tumours
Creators: name: Oliver, Thomas RW
name: Chappell, Lia
name: Sanghvi, Rashesh
name: Deighton, Lauren
name: Ansari-Pour, Naser
name: Dentro, Stefan C
name: Young, Matthew D
name: Coorens, Tim HH
name: Jung, Hyunchul
name: Butler, Tim
name: Neville, Matthew DC
name: Leongamornlert, Daniel
name: Sanders, Mathijs A
name: Hooks, Yvette
name: Cagan, Alex
name: Mitchell, Thomas J
name: Cortes-Ciriano, Isidro
name: Warren, Anne Y
name: Wedge, David C
name: Heer, Rakesh
name: Coleman, Nicholas
name: Murray, Matthew J
name: Campbell, Peter J
name: Rahbari, Raheleh
name: Behjati, Sam
Publisher: name: Apollo - University of Cambridge Repository
Year: 2022
Subjects: Article
/631/67/1679
/631/114/739
/631/1647/514
/631/67/69
/631/67/2329
/45/23
/45/91
/45/70
/13/51
/14/63
article

description: Funder: Max Williamson Fund
description: Abstract: Germ cell tumours (GCTs) are a collection of benign and malignant neoplasms derived from primordial germ cells. They are uniquely able to recapitulate embryonic and extraembryonic tissues, which carries prognostic and therapeutic significance. The developmental pathways underpinning GCT initiation and histogenesis are incompletely understood. Here, we study the relationship of histogenesis and clonal diversification in GCTs by analysing the genomes and transcriptomes of 547 microdissected histological units. We find no correlation between genomic and histological heterogeneity. However, we identify unifying features including the retention of fetal developmental transcripts across tissues, expression changes on chromosome 12p, and a conserved somatic evolutionary sequence of whole genome duplication followed by clonal diversification. While this pattern is preserved across all GCTs, the developmental timing of the duplication varies between prepubertal and postpubertal cases. In addition, tumours of younger children exhibit distinct substitution signatures which may lend themselves as potential biomarkers for risk stratification. Our findings portray the extensive diversification of GCT tissues and genetic subclones as randomly distributed, while identifying overarching transcriptional and genomic features.
Pixelated Reconstruction of Foreground Density and Background Surface Brightness in Gravitational Lensing Systems using Recurrent Inference Machines
Creators: name: Adam, Alexandre
name: Perreault-Levasseur, Laurence
name: Hezaveh, Yashar
name: Welling, Max
Publisher: name: arXiv
Year: 2023
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Modeling strong gravitational lenses in order to quantify the distortions in the images of background sources and to reconstruct the mass density in the foreground lenses has been a difficult computational challenge. As the quality of gravitational lens images increases, the task of fully exploiting the information they contain becomes computationally and algorithmically more difficult. In this work, we use a neural network based on the Recurrent Inference Machine (RIM) to simultaneously reconstruct an undistorted image of the background source and the lens mass density distribution as pixelated maps. The method iteratively reconstructs the model parameters (the image of the source and a pixelated density map) by learning the process of optimizing the likelihood given the data using the physical model (a ray-tracing simulation), regularized by a prior implicitly learned by the neural network through its training data. When compared to more traditional parametric models, the proposed method is significantly more expressive and can reconstruct complex mass distributions, which we demonstrate by using realistic lensing galaxies taken from the IllustrisTNG cosmological hydrodynamic simulation.
description: 13+7 pages, 13 figures; Accepted by The Astrophysical Journal. arXiv admin note: text overlap with arXiv:2207.01073
Uncovering Circumbinary Planetary Architectural Properties from Selection Biases
Creators: name: Li, Gongjie
name: Holman, Matthew J.
name: Tao, Molei
Publisher: name: arXiv
Year: 2016
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The new discoveries of circumbinary planetary systems shed light on the understanding of planetary system formation. Learning the architectural properties of these systems is essential for constraining the different formation mechanisms. We first revisit the stability limit of circumbinary planets. Next, we focus on eclipsing stellar binaries and obtain an analytical expression for the transit probability in a realistic setting, where finite observation period and planetary orbital precession are included. Then, understanding of the architectural properties of the currently observed transiting systems is refined, based on Bayesian analysis and a series of hypothesis tests. We find 1) it is not a selection bias that the innermost planets reside near the stability limit for eight of the nine observed systems, and this is consistent with a log uniform distribution of the planetary semi-major axis; 2) it is not a selection bias that the planetary and stellar orbits are nearly coplanar ($\lesssim 3^\circ$), and this together with previous studies may imply an occurrence rate of circumbinary planets similar to that of single star systems; 3) the dominance of observed circumbinary systems with only one transiting planet may be caused by selection effects; 4) formation mechanisms involving Lidov-Kozai oscillations, which may produce misalignment and large separation between planet and stellar binaries, are consistent with the lack of transiting circumbinary planets around short-period stellar binaries, in agreement with previous studies. As a consequence of 4), eclipse timing variations may better suit the detection of planets in such configurations.
description: 18 pages, 13 figures. Accepted for publication in ApJ
Modelling dust processing and the evolution of grain sizes in the ISM using the method of moments
Creators: name: Mattsson, Lars
Publisher: name: arXiv
Year: 2016
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Interstellar dust grains do not have a single well-defined origin. Stars are demonstrably dust producers, but also efficient destroyers of cosmic dust. Dust destruction in the ISM is believed to be the result of SN shocks hitting the ambient ISM gas (and dust) and lead to an increased rate of ion sputtering, which reduces the dust mass. Grains located in cold molecular clouds can on the other hand grow by condensation, thus providing a replenishment mechanism or even a dominant channel of dust formation. In dense environments grains may coagulate and form large composite grains and aggregates and if grains collide with large enough energies they may be shattered, forming a range of smaller debris grains. The present paper presents a statistical modelling approach using the method of moments, which is computationally very inexpensive and may therefore be an attractive option when combining dust processing with, e.g., detailed simulations of interstellar gas dynamics. A solar-neighbourhood-like toy model of interstellar dust evolution is presented as an example.
description: 21 pages, 8 figures and 2 tables. To appear in the special issue in P&SS on cosmic dust ("Cosmic Dust VIII")
Quantum Geometric Oscillations in Two-Dimensional Flat-Band Solids
Creators: name: Phong, Vo Tien
name: Mele, E. J.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Two-dimensional van der Waals heterostructures can be engineered into artificial superlattices that host flat bands with significant Berry curvature and provide a favorable environment for the emergence of novel electron dynamics. In particular, the Berry curvature can induce an oscillating trajectory of an electron wave packet transverse to an applied static electric field. Though analogous to Bloch oscillations, this novel oscillatory behavior is driven entirely by quantum geometry in momentum space instead of band dispersion. While the orbits of Bloch oscillations can be localized by increasing field strength, the size of the geometric orbits saturates to a nonzero plateau in the strong-field limit. In non-magnetic materials, the geometric oscillations are even under inversion of the applied field, whereas the Bloch oscillations are odd, a property that can be used to distinguish these two co-existing effects.
description: 6 + 7 pages, 2 figures. Comments are greatly appreciated!
Serious Games and AI: Challenges and Opportunities for Computational Social Science
Creators: name: Pérez, Jaime
name: Castro, Mario
name: López, Gregorio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: The video game industry plays an essential role in the entertainment sphere of our society. However, from Monopoly to Flight Simulators, serious games have also been appealing tools for learning a new language, conveying values, or training skills. Furthermore, the resurgence of Artificial Intelligence (AI) and data science in the last decade has created a unique opportunity since the amount of data collected through a game is immense, as is the amount of data needed to feed such AI algorithms. This paper aims to identify relevant research lines using Serious Games as a novel research tool, especially in Computational Social Sciences. To contextualize, we also conduct a (non-systematic) literature review of this field. We conclude that the synergy between games and data can foster the use of AI for good and open up new strategies to empower humanity and support social research with novel computational tools. We also discuss the challenges and new opportunities that arise from aspiring to such lofty goals.
Linear stability analysis of Israel-Stewart theory in the case of a nonzero background charge
Creators: name: Sammet, Julia
name: Mayer, Markus
name: Rischke, Dirk H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Linear stability of Israel-Stewart theory in the presence of net-charge diffusion was investigated in [Phys.~Rev.~D 102 (2020) 116009] for the case of a massless, classical gas of noninteracting particles. However, in that work only a vanishing net-charge background was considered. In this work, we extend that study to the case of a nonvanishing background charge. We find that this effectively results in a change of the numeric value of the charge-diffusion coefficient, in a way that when the background charge goes to infinity, this coefficient can become at most four times its value at zero background charge. We also extend the analysis of [Phys.~Rev.~D 102 (2020) 116009] by performing a systematic parameter study in the plane of charge-diffusion coefficient vs.\ the coupling term between shear-stress and net-charge diffusion. In this plane, we identify regions where the solutions remain stable and causal and where they become acausal and/or unstable.
Thermodynamically Stable Phases of Asymptotically Flat Lovelock Black Holes
Creators: name: Wu, Jerry
name: Mann, Robert B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present the first examples of phase transitions in asymptotically flat black hole solutions. We analyze the thermodynamic properties of black holes in order $N\ge 3$ Lovelock gravity, with zero cosmological constant. We find a new type of "inverted" swallowtail indicative of stable temperature regions for an otherwise unstable neutral black hole, and demonstrate multiple such stable phases can exist and coexist at multi-critical points. We also find that for charged black holes, ordinary swallowtails can exist on the stable Gibbs free energy branch, allowing for multiple first order phase transitions as seen for AdS black holes. A triple point for $N=5$ and a quadruple point for $N=7$ are presented explicitly. We investigate changes in the Gibbs free energy as the lowest order Lovelock constant is varied, and draw comparisons to pressure changes for AdS black hole systems.
description: References added
Hints at a relationship between friction and relativistic physics
Creators: name: Minguzzi, E.
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In applied mechanics Reye's law (1860) establishes, via energy arguments, that the mass of the debris produced by dry friction in the contact of rigid bodies is proportional to the work done by friction forces. This result has long been used for the determination of the distribution of pressure in the contact of rigid bodies, and hence for the design of brakes. In this work I show that, when bodies losing mass due to friction are treated, as they should, as variable mass systems, a relationship analogous to the relativistic mass formula is recovered. This result suggests that mathematical structures typical of relativistic physics could have been discovered prior to 1905, without making any reference to electromagnetism, group theory or the speed of light. Also this result could point to the existence of a physical theory depending on two constants, the speed of light (Reye's constant) and a universal frictional deceleration with respect to an absolute frame. The limit of the theory for vanishing friction would give Special Relativity, as the absolute frame would become unobservable, while the limit for the speed of light going to infinity would lead to Aristotelian mechanics, i.e. a classical mechanics type theory presenting universal friction. Finally, I present a reference frame transformation that displays these features and I apply the theory to some open cosmological problems.
description: Latex, 18 pages, 9 figures. Contribution to the conference DICE2022 `Quantum riddles and spacetime oddities', Castiglioncello, Sep. 19-23, 2022. arXiv admin note: text overlap with arXiv:1412.0010
High-Resolution Semantic Labeling with Convolutional Neural Networks
Creators: name: Maggiori, Emmanuel
name: Tarabalka, Yuliya
name: Charpiat, Guillaume
name: Alliez, Pierre
Publisher: name: arXiv
Year: 2016
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Convolutional neural networks (CNNs) have received increasing attention over the last few years. They were initially conceived for image categorization, i.e., the problem of assigning a semantic label to an entire input image. In this paper we address the problem of dense semantic labeling, which consists in assigning a semantic label to every pixel in an image. Since this requires a high spatial accuracy to determine where labels are assigned, categorization CNNs, intended to be highly robust to local deformations, are not directly applicable. By adapting categorization networks, many semantic labeling CNNs have been recently proposed. Our first contribution is an in-depth analysis of these architectures. We establish the desired properties of an ideal semantic labeling CNN, and assess how those methods stand with regard to these properties. We observe that even though they provide competitive results, these CNNs often underexploit properties of semantic labeling that could lead to more effective and efficient architectures. Out of these observations, we then derive a CNN framework specifically adapted to the semantic labeling problem. In addition to learning features at different resolutions, it learns how to combine these features. By integrating local and global information in an efficient and flexible manner, it outperforms previous techniques. We evaluate the proposed framework and compare it with state-of-the-art architectures on public benchmarks of high-resolution aerial image labeling.
title: Зарубежный опыт государственного и муниципального управления
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: В учебном пособии рассмотрены механизмы осуществления государственной власти в зарубежных странах, классификация современных государств, принципы разделения власти, модели государственного управления, аспекты современного зарубежного опыта государственного и муниципального управления. Даны методические рекомендации по освоению дисциплины, тезисы лекций, типовые контрольные и тестовые задания, вопросы к экзамену. Подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования. Учебное пособие рекомендовано студентам, обучающимся по укрупненной группе направлений подготовки высшего образования «Экономика и управление», изучающим дисциплину «Зарубежный опыт государственного и муниципального управления». Будет полезно слушателям переподготовки и повышения квалификации по направлению подготовки «Государственное и муниципальное управление» и преподавателям.
Semiclassical ground-state phase diagram and multi-Q phase of a spin-orbit coupled model on triangular lattice
Creators: name: Liu, Changle
name: Wang, Xiaoqun
name: Yu, Rong
Publisher: name: arXiv
Year: 2016
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Motivated by recent experiments on the frustrated quantum magnetic compound YbMgGaO4, we study an effective spin model on triangular lattice taking into account the effects of the spin-orbit coupling. We determine the classical ground-state phase diagram of this model, which includes a 120 degree Neel and two collinear antiferromagnetic phases. In the vicinity of the phase boundary between the Neel and collinear phases, we identify three intermediate non-collinear antiferromagnetic phases. In each of them the magnetic moments are ordered at multiple incommensurate wave vector Q values. We further study the effects of quantum fluctuations in this model via a linear spin-wave theory. We find that the spin excitation gap of the non-collinear multi-Q antiferromagnetic state is finite but can be vanishingly small, and this state is unstable to a spin liquid phase under strong quantum fluctuations in some large J_{z+-} regime.
description: 11 pages, 5 figures
Quasi-particle random phase approximation with quasi-particle-vibration coupling: application to the Gamow-Teller response of the superfluid nucleus $^{120}$Sn
Creators: name: Niu, Y. F.
name: Colo, G.
name: Vigezzi, E.
name: Bai, C. L.
name: Sagawa, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a self-consistent quasi-particle random phase approximation (QRPA) plus quasi-particle-vibration coupling (QPVC) model with Skyrme interactions to describe the width and the line shape of giant resonances in open-shell nuclei, in which the effect of superfluidity should be taken into account in both the ground state and the excited states. We apply the new model to the Gamow-Teller resonance in the superfluid nucleus $^{120}$Sn, including both the isoscalar spin-triplet and the isovector spin-singlet pairing interactions. The strength distribution in $^{120}$Sn is well reproduced and the underlying microscopic mechanisms, related to QPVC and also to isoscalar pairing, are analyzed in detail.
description: 32 pages, 11 figures, 4 tables
Near Horizon Symmetries of the Non-Extremal Black Hole Solutions of Generalized Minimal Massive Gravity
Creators: name: Setare, M. R.
name: Adami, H.
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider the Generalized Minimal Massive Gravity (GMMG) model in the first order formalism. We show that all the solutions of the Einstein gravity with negative cosmological constants solve the equations of motion of considered model. Then we find an expression for the off-shell conserved charges of this model. By considering the near horizon geometry of a three dimensional black hole in the Gaussian null coordinates, we find near horizon conserved charges and their algebra. The obtained algebra is centrally extended. By writing the algebra of conserved charges in terms of Fourier modes and considering the BTZ black hole solution as an example, one can see that the charge associated with rotations along $\mathcal{Y}_{0}$ coincides exactly with the angular momentum, and he charge associated with time translations $\mathcal{T}_{0}$ is the product of the black hole entropy and its temperature. As we expect, in the limit when the GMMG tends to the Einstein gravity, all the result we obtain in this paper reduce to the result of the paper \cite{5}.
description: 14 pages
title: Инновационные технологии в деятельности органов власти в таблицах и схемах
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: В учебном наглядном пособии содержатся таблицы и схемы, методические рекомендации, глоссарий, которые помогут качественно освоить дисциплину «Инновационные технологии в деятельности органов власти». Подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования.Рекомендуется студентам укрупненной группы специальностей и направлений подготовки «Экономика и управление» при подготовке к занятиям по дисциплинам «Инновационные технологии в деятельности органов власти», «Инновационные технологии в государственном и муниципальном управлении». Будет полезно аспирантам, слушателям переподготовки и повышения квалификации по направлению подготовки «Государственное и муниципальное управление» и преподавателям.
More on the first-order thermodynamics of scalar-tensor and Horndeski gravity
Creators: name: Faraoni, Valerio
name: Houle, Julien
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Two issues in the first-order thermodynamics of scalar-tensor (including ``viable'' Horndeski) gravity are elucidated. The application of this new formalism to FLRW cosmology is shown to be fully legitimate and then extended to all Bianchi universes. It is shown that the formalism holds thanks to the almost miraculous fact that the constitutive relations of Eckart's thermodynamics are satisfied, while writing the field equations as effective Einstein equations with an effective dissipative fluid does not contain new physics.
description: 10 pages, LaTeX
On the evolution of cooperation under social pressure in multiplex networks
Creators: name: Pereda, María
Publisher: name: arXiv
Year: 2016
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In this work, we aim to contribute to the understanding of the human pro-social behavior by studying the influence that a particular form of social pressure "being watched" has on the evolution of cooperative behavior. We study how cooperation emerge in multiplex complex topologies by analyzing a particular bidirectionally-coupled dynamics on top of a two-layers multiplex network (duplex). The coupled dynamics appears between the Prisoner's Dilemma game in a network, and a threshold cascade model in the other. The threshold model is intended to abstract the behavior of a network of vigilant nodes, that impose pressure of being observed altering hence the temptation to defect of the dilemma. Cooperation or defection in the game also affects the state of a node of being vigilant. We analyze these processes on different duplex networks structures and assess the influence of the topology, average degree and correlated multiplexity, on the outcome of cooperation. Interestingly, we find that the social pressure of vigilance may impact cooperation positively or negatively, depending on the duplex structure, specifically the degree correlations between layers is determinant. Our results give further quantitative insights in the promotion of cooperation under social pressure.
description: 6 pages, 6 figures
title: Компетенция органов местного самоуправления в сфере охраны окружающей среды и экологической безопасности
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: В учебном пособии на основе анализа и обобщения действующей в Российской Федерации нормативно-правовой базы в области экологии в доступной форме освещаются государственная стратегия по природопользованию и охране окружающей среды, а также роль органов местного самоуправления в решении экологически значимых вопросов по охране окружающей среды и обеспечению экологической безопасности. В издании приведены тезисы лекций, вопросы для самоконтроля, тестовые задания, задачи, глоссарий, список рекомендуемой литературы. Подготовлено в соответствии с требованиями Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов, обучающихся по укрупненным группам специальностей и направлений подготовки «Экономика и управление» «Юриспруденция», изучающих дисциплины «Система государственного и муниципального управления», «Экологическое право», преподавателей юридических вузов, а также для специалистов, осуществляющих деятельность в природоохранной сфере.
Acyclic Chromatic Index of Chordless Graphs
Creators: name: Basavaraju, Manu
name: Hegde, Suresh Manjanath
name: Kulamarva, Shashanka
Publisher: name: arXiv
Year: 2023
Subjects: subject: Combinatorics (math.CO)
subject: Discrete Mathematics (cs.DM)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: An acyclic edge coloring of a graph is a proper edge coloring in which there are no bichromatic cycles. The acyclic chromatic index of a graph $G$ denoted by $a'(G)$, is the minimum positive integer $k$ such that $G$ has an acyclic edge coloring with $k$ colors. It has been conjectured by Fiamč\'ık that $a'(G) \le Δ+2$ for any graph $G$ with maximum degree $Δ$. Linear arboricity of a graph $G$, denoted by $la(G)$, is the minimum number of linear forests into which the edges of $G$ can be partitioned. A graph is said to be chordless if no cycle in the graph contains a chord. Every $2$-connected chordless graph is a minimally $2$-connected graph. It was shown by Basavaraju and Chandran that if $G$ is $2$-degenerate, then $a'(G) \le Δ+1$. Since chordless graphs are also $2$-degenerate, we have $a'(G) \le Δ+1$ for any chordless graph $G$. Machado, de Figueiredo and Trotignon proved that the chromatic index of a chordless graph is $Δ$ when $Δ\ge 3$. They also obtained a polynomial time algorithm to color a chordless graph optimally. We improve this result by proving that the acyclic chromatic index of a chordless graph is $Δ$, except when $Δ=2$ and the graph has a cycle, in which case it is $Δ+1$. We also provide the sketch of a polynomial time algorithm for an optimal acyclic edge coloring of a chordless graph. As a byproduct, we also prove that $la(G) = \lceil \frac{Δ}{2} \rceil$, unless $G$ has a cycle with $Δ=2$, in which case $la(G) = \lceil \frac{Δ+1}{2} \rceil = 2$. To obtain the result on acyclic chromatic index, we prove a structural result on chordless graphs which is a refinement of the structure given by Machado, de Figueiredo and Trotignon for this class of graphs. This might be of independent interest.
IT formulae for gamma target: mutual information and relative entropy
Creators: name: Arras, Benjamin
name: Swan, Yvik
Publisher: name: arXiv
Year: 2016
Subjects: subject: Probability (math.PR)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we introduce new Stein identities for gamma target distribution as well as a new non-linear channel specifically designed for gamma inputs. From these two ingredients, we derive an explicit and simple formula for the derivative of the input-output mutual information of this non-linear channel with respect to the channel quality parameter. This relation is reminiscent of the well-known link between the derivative of the input-output mutual information of additive Gaussian noise channel with respect to the signal-to-noise ratio and the minimum mean-square error. The proof relies on a rescaled version of De Bruijn identity for gamma target distribution together with a stochastic representation for the gamma specific Fisher information. Finally, we are able to derive precise bounds and asymptotics for the input-output mutual information of the non-linear channel with gamma inputs.
description: submitted for publication in the IEEE Transactions on Information Theory
A network of hyperloops
Creators: name: Kong, Ziwen
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper we complete the exploration of connected components of the space of BPS Wilson loops in three-dimensional $\mathcal{N}=4$ Chern-Simons-matter theory on $S^3$. The algorithm is to start with a supersymmetric Wilson loop, choose a preserved supercharge, and look for BPS deformations built out of the matter fields in the proper representations. Using this, we discover many new moduli spaces of nonconformal BPS Wilson loops preserving a single or two supercharges, which are subsets of the symmetries of the 1/4 and 3/8 BPS operators. Along with the those previously found in arXiv:2012.07096, arXiv:2206.07390 and arXiv:2210.03758, the total moduli spaces are closed under this formalism.
description: 23 pages, 2 figures
Anomalies From the Covariant Derivative Expansion
Creators: name: Cohen, Timothy
name: Lu, Xiaochuan
name: Zhang, Zhengkang
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We revisit the calculation of anomalies for global and gauge symmetries in the framework of the Covariant Derivative Expansion (CDE). Due to the presence of UV divergences, the result is an ambiguous quantity that depends on the regularization procedure and the renormalization scheme. We introduce a class of regulators that facilitate a straightforward evaluation of the anomaly exclusively in $d=4$ spacetime dimensions using the CDE methodology. We derive a master formula for the anomaly that integrates various known results into a unified framework.
description: 46 pages
title: Организация муниципального управления в сфере физической культуры и спорта
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: В монографии проанализированы особенности организация муниципального управления в сфере физической культуры и спорта. Выделены актуальные проблемы организации деятельности местной администрации в данной сфере и предложены пути их решения. Данная монография рекомендуется при подготовке к занятиям по дисциплине «Местное самоуправление». Предназначена для студентов, обучающихся по направлению подготовки «Государственное и муниципальное управление», преподавателей, а также депутатов представительных органов муниципальных образований и муниципальных служащих.
Life beyond 30: probing the -20
Creators: name: Pérez-González, Pablo G.
name: Costantin, Luca
name: Langeroodi, Danial
name: Rinaldi, Pierluigi
name: Annunziatella, Marianna
name: Ilbert, Olivier
name: Colina, Luis
name: Noorgaard-Nielsen, Hans Ulrik
name: Greve, Thomas
name: Ostlin, Göran
name: Wright, Gillian
name: Alonso-Herrero, Almudena
name: Álvarez-Márquez, Javier
name: Caputi, Karina I.
name: Eckart, Andreas
name: Fèvre, Olivier Le
name: Labiano, Álvaro
name: García-Marín, Macarena
name: Hjorth, Jens
name: Kendrew, Sarah
name: Pye, John P.
name: Tikkanen, Tuomo
name: van der Werf, Paul
name: Walter, Fabian
name: Ward, Martin
name: Bik, Arjan
name: Boogaard, Leindert
name: Bosman, Sarah E. I.
name: Gómez, Alejandro Crespo
name: Gillman, Steven
name: Iani, Edoardo
name: Jermann, Iris
name: Melinder, Jens
name: Meyer, Romain A.
name: Moutard, Thibaud
name: van Dishoek, Ewine
name: Henning, Thomas
name: Lagage, Pierre-Olivier
name: Guedel, Manuel
name: Peissker, Florian
name: Ray, Tom
name: Vandenbussche, Bart
name: García-Argumánez, Ángela
name: Mérida, Rosa María
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the ultraviolet luminosity function and an estimate of the cosmic star formation rate density at $88$ galaxy candidates based on their dropout nature in the F115W and/or F150W filters, a high probability for their photometric redshifts, estimated with three different codes, being at $z>8$, good fits based on $χ^2$ calculations, and predominant solutions compared to $z<8$ alternatives. We find mild evolution in the luminosity function from $z\sim13$ to $z\sim8$, i.e., only a small increase in the average number density of $\sim$0.2 dex, while the faint-end slope and absolute magnitude of the knee remain approximately constant, with values $α=-2.2\pm0.1$ and $M^*=-20.8\pm0.2$ mag. Comparing our results with the predictions of state-of-the-art galaxy evolution models, we find two main results: (1) a slower increase with time in the cosmic star formation rate density compared to a steeper rise predicted by models; (2) nearly a factor of 10 higher star formation activity concentrated in scales around 2 kpc in galaxies with stellar masses $\sim10^8$ M$_\odot$ during the first 350 Myr of the Universe, $z\sim12$, with models matching better the luminosity density observational estimations $\sim$150 Myr later, by $z\sim9$.
description: Accepted for publication in ApJL, in memoriam Hans Ulrik Noorgaard-Nielsen and Olivier Le F\`evre
Geometric theory of topological defects: methodological developments and new trends
Creators: name: Fumeron, Sébastien
name: Berche, Bertrand
name: Moraes, Fernando
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Liquid crystals generally support orientational singularities of the director field known as topological defects. These latter modifiy transport properties in their vicinity as if the geometry was non-Euclidean. We present a state of the art of the differential geometry of nematic liquid crystals, with a special emphasis on linear defects. We then discuss unexpected but deep connections with cosmology and high-energy-physics, and conclude with a review on defect engineering for transport phenomena.
title: Основы городского управления
Creators: name: ELS IPR BOOKS
Publisher: name: Ай Пи Ар Медиа
Year: 2023

description: Учебное пособие содержит основные вопросы по дисциплинам муниципального блока и призвано формировать уровень подготовки обучающихся, определенный как государственным стандартом, так и дополнительными требованиями, устанавливаемыми образовательными учреждениями. Работа с изданием окажет помощь обучающимся при подготовке к экзаменам, а также может быть полезна в практической деятельности преподавателям, муниципальным служащим, депутатам представительных органов местной власти и всем, кто интересуется вопросами развития городского управления в России. Подготовлено с учетом требований Федерального государственного образовательного стандарта высшего образования. Учебное пособие предназначено для студентов, обучающихся по укрупненной группе специальностей и направлений подготовки высшего образования «Экономика и управление», изучающих дисциплину «Основы городского управления».
A note on the probabilistic N-Banach spaces
Creators: name: Pourmoslemi, Alireza
name: Salimi, Mehdi
Publisher: name: arXiv
Year: 2016
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this paper, we define probabilistic n-Banach spaces along with some concepts in this field and study convergence in these spaces by some lemmas and theorem.
description: Publisher: Pushpa Publishing House. (2009)