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We study the problem of deterministic approximate counting of matchings and independent sets in graphs of bounded connective constant. More generally, we consider the problem of evaluating the partition functions of the monomer-dimer model…

数据结构与算法 · 计算机科学 2014-10-10 Alistair Sinclair , Piyush Srivastava , Daniel Štefankovič , Yitong Yin

We present a numerical study of 2D random-bond Potts ferromagnets. The model is studied both below and above the critical value $Q_c=4$ which discriminates between second and first-order transitions in the pure system. Two geometries are…

统计力学 · 物理学 2009-10-31 Christophe Chatelain , Bertrand Berche

The dimer model is an exactly solvable model of planar statistical mechanics. In its critical phase, various aspects of its scaling limit are known to be described by the Gaussian free field. For periodic graphs, criticality is an algebraic…

概率论 · 数学 2015-06-22 Julien Dubédat , Reza Gheissari

Systematic understanding for classes of inflationary models is investigated from the viewpoint of the local conformal symmetry and the slightly broken global symmetry in the framework of the metric-affine geometry. In the metric-affine…

高能物理 - 理论 · 物理学 2021-02-01 Yusuke Mikura , Yuichiro Tada , Shuichiro Yokoyama

We present a one-parameter extension of the raise and peel one-dimensional growth model. The model is defined in the configuration space of Dyck (RSOS) paths. Tiles from a rarefied gas hit the interface and change its shape. The adsorption…

统计力学 · 物理学 2011-07-08 Francisco C. Alcaraz , Vladimir Rittenberg

We study a conformally coupled scalar-tensor theory with a quartic potential possessing local conformal symmetry up to a boundary term. We show that requiring the restoration of the full local conformal symmetry fixes the counterterms that…

高能物理 - 理论 · 物理学 2023-05-25 Giorgos Anastasiou , Ignacio J. Araya , Mairym Busnego-Barrientos , Cristobal Corral , Nelson Merino

We derive a composite centrality measure for general weighted and directed complex networks, based on measure standardisation and invariant statistical inheritance schemes. Different schemes generate different intermediate abstract measures…

统计方法学 · 统计学 2014-01-21 Andreas Joseph , Guanrong Chen

Computer models are used to model complex processes in various disciplines. Often, a key source of uncertainty in the behavior of complex computer models is uncertainty due to unknown model input parameters. Statistical computer model…

统计方法学 · 统计学 2013-08-02 Won Chang , Murali Haran , Roman Olson , Klaus Keller

There is mounting empirical evidence that many communities of living organisms display key features which closely resemble those of physical systems at criticality. We here introduce a minimal model framework for the dynamics of a community…

生物物理 · 物理学 2020-02-17 Fabio Peruzzo , Mauro Mobilia , Sandro Azaele

Rotational constraint representing a local external bias generally has non-trivial effect on the critical behavior of lattice statistical models in equilibrium critical phenomena. In order to study the effect of rotational bias in a out of…

软凝聚态物质 · 物理学 2009-11-13 S. B. Santra , S. Ranjita Chanu , D. Deb

We study the accuracy and predictive power of conformal perturbation theory by a comparison with lattice results in the neighborhood of the finite-temperature deconfinement transition of SU(2) Yang-Mills theory, assuming that the infrared…

高能物理 - 格点 · 物理学 2019-09-05 Michele Caselle , Nicodemo Magnoli , Alessandro Nada , Marco Panero , Marcello Scanavino

We find a class of four dimensional deformed conformal field theories which appear extra dimensional when their gauge symmetries are spontaneously broken. The theories are supersymmetric moose models which flow to interacting conformal…

高能物理 - 理论 · 物理学 2008-11-26 Joshua Erlich , Jong Anly Tan

In this paper we discuss two general models of random simplicial complexes which we call the lower and the upper models. We show that these models are dual to each other with respect to combinatorial Alexander duality. The behaviour of the…

代数拓扑 · 数学 2022-01-05 Michael Farber , Lewis Mead , Tahl Nowik

We introduce a weak asymptotic version of nonlinear contraction, termed \emph{asymptotic pointwise contraction}. For a mapping on a metric space, this notion requires the existence of a sequence of functions that dominate the distances…

泛函分析 · 数学 2026-04-15 Jie Shi

This paper discusses the asymptotic behaviour of the number of descents in a random signed permutation and its inverse, which was posed as an open problem by Chatterjee and Diaconis in a recent publication. For that purpose, we generalize…

概率论 · 数学 2021-06-17 Frank Röttger

Consider semiparametric models that display local asymptotic exponentiality (Ibragimov and Has'minskii (1981)), an asymptotic property of the likelihood associated with discontinuities of densities. Our interest goes to estimation of the…

统计理论 · 数学 2013-12-19 Bas Kleijn , Bartek Knapik

In large part, the future utility of modern numerical conformal bootstrap depends on its ability to accurately predict the existence of hitherto unknown non-trivial conformal field theories (CFTs). Here we investigate the extent to which…

高能物理 - 理论 · 物理学 2021-03-31 Matthew T. Dowens , Chris A. Hooley

An effective characterization of chaotic conservative Hamiltonian systems in terms of the curvature associated with a Riemannian metric tensor derived from the structure of the Hamiltonian has been extended to a wide class of potential…

混沌动力学 · 物理学 2015-05-18 Yossi Ben Zion , Lawrence Horwitz

We derive the exact actions of the $Q$-state Potts model valid on any graph, first for the spin degrees of freedom, and second for the Fortuin-Kasteleyn clusters. In both cases the field is a traceless $Q$-component scalar field…

高能物理 - 理论 · 物理学 2024-09-20 Kay Joerg Wiese , Jesper Lykke Jacobsen

Motivated by applications, the last few years have witnessed tremendous interest in understanding the structure as well as the behavior of dynamics for inhomogeneous random graph models. In this study we analyze the maximal components at…

概率论 · 数学 2016-08-02 Shankar Bhamidi , Sanchayan Sen , Xuan Wang