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We analyze the asymptotic behaviour of the heat kernel defined by a stochastically perturbed geodesic flow on the cotangent bundle of a Riemannian manifold for small time and small diffusion parameter. This extends WKB-type methods to a…

泛函分析 · 数学 2009-12-26 Sergio Albeverio , Astrid Hilbert , Vassily Kolokoltsov

At thermal equilibrium, we find that generalized susceptibilities encoding the static physical response properties of Hermitian many-electron systems possess inherent non-Hermitian (NH) matrix symmetries. This leads to the generic…

The purpose of this paper is to investigate the existence and estimation of Hausdorff and fractal dimension of global attractors for a delayed reaction-diffusion equation on an unbounded domain. The noncompactness of the domain cause the…

动力系统 · 数学 2023-10-20 Wenjie Hu , Tomás Caraballo

In this paper, we study the quasisymmetric embeddability of weak tangents of metric spaces. We first show that quasisymmetric embeddability is hereditary, i.e., if $X$ can be quasisymmetrically embedded into $Y$, then every weak tangent of…

度量几何 · 数学 2022-12-27 Wen-Bo Li

This article addresses the issue of uniform measure attractors for non-autonomous McKean-Vlasov stochastic reaction-diffusion equations defined on unbounded thin domains. Initially, the concept of uniform measure attractors is recalled, and…

概率论 · 数学 2024-12-30 Tianhao Zeng , Ran Li , Dingshi Li

Periodically driven coherent conductors provide a universal platform for the development of quantum transport devices. Here, we lay down a comprehensive theory to describe the thermodynamics of these systems. We first focus on moderate…

介观与纳米尺度物理 · 物理学 2021-04-15 Elina Potanina , Christian Flindt , Michael Moskalets , Kay Brandner

In this paper, we establish a quantitative weak unique continuation theorem on an annular domain for a backward degenerate parabolic equation with a degenerate interior point. Our methodology hinges on approximating the solution of the…

偏微分方程分析 · 数学 2026-05-05 Dong-Hui Yang , Bao-Zhu Guo , Guojie Zheng , Jie Zhong

In this letter, a coupled system of viscous Burgers' equations with zero Dirichlet boundary conditions and appropriate initial data is considered. For the well-known single viscous Burgers' equation with zero Dirichlet boundary conditions,…

chao-dyn · 物理学 2008-02-03 J. Duan , J. Nee

In this work we derive a WKB expansion for the electromagnetic fields solution of the time-harmonic Maxwell equations set in a domain with a thin layer. As a by-product of this expansion we obtain new second order asymptotic models with…

数值分析 · 数学 2022-07-25 Victor Péron

We study the long-time behavior of solutions of the one dimensional wave equation with nonlinear damping coefficient. We prove that if the damping coefficient function is strictly positive near the origin then this equation possesses a…

偏微分方程分析 · 数学 2020-07-15 A. Kh. Khanmamedov

We establish the existence of global weak solutions of the 2D incompressible Euler equation, for a large class of non-smooth open sets. These open sets are the complements (in a simply connected domain) of a finite number of connected…

偏微分方程分析 · 数学 2013-01-03 David Gérard-Varet , Christophe Lacave

We study pullback attractors of non-autonomous non-compact dynamical systems generated by differential equations with non-autonomous deterministic as well as stochastic forcing terms. We first introduce the concepts of pullback attractors…

偏微分方程分析 · 数学 2012-04-24 Bixiang Wang

We study the long-time behaviour of solutions to some classes of fourth-order nonlinear PDEs with non-monotone nonlinearities, which include the Landau--Lifshitz--Baryakhtar (LLBar) equation (with all relevant fields and spin torques) and…

偏微分方程分析 · 数学 2025-06-30 Beniamin Goldys , Agus L. Soenjaya , Thanh Tran

We study the problem of persistence of attractors with smooth boundary for a class of set-valued dynamical systems that naturally arise in the context of random and control dynamical systems, as well as in systems modeling the dynamical…

动力系统 · 数学 2025-11-18 K. Kourliouros , J. S. W. Lamb , M. Rasmussen , W. H. Tey , K. G. Timperi , D. Turaev

We investigate low-density, quantum-degenerate gases in the presence of a localised attractive potential in the centre of a one-dimensional harmonic trap.The attractive potential is modelled using a parameterised delta-function, allowing us…

量子物理 · 物理学 2008-06-30 J. Goold , D. O Donoghue , Th. Busch

This is an introductory lecture note aiming at providing an overview of the AdS-CFT correspondence at weak 't Hooft coupling at finite temperature. The first aim of this note is to describe the equivalence of three interesting…

高能物理 - 理论 · 物理学 2008-06-30 Kazuyuki Furuuchi

We study the degenerate linear Boltzmann equation inside a bounded domain with a generalized diffuse reflection at the boundary and variable temperature, including the Maxwell boundary conditions with the wall Maxwellian or heavy-tailed…

偏微分方程分析 · 数学 2024-12-24 Armand Bernou

Recent cold atom experiments have observed bad and strange metal behaviors in strongly-interacting Fermi-Hubbard systems. Motivated by these results, we calculate the thermoelectric transport properties of a 2D Fermi-Hubbard system in the…

量子气体 · 物理学 2021-08-27 Thomas G. Kiely , Erich J. Mueller

We study the generalized $\alpha$ attractor model in the context of the late time cosmic acceleration. The model interpolates between the scaling freezing and thawing dark energy models. In the slow roll region, the original potential is…

宇宙学与河外天体物理 · 物理学 2018-02-06 M. Shahalam , Ratbay Myrzakulov , Shynaray Myrzakul , Anzhong Wang

In the present work, we consider weakly-singular integral equations arising from linear second-order strongly-elliptic PDE systems with constant coefficients, including, e.g., linear elasticity. We introduce a general framework for optimal…

数值分析 · 数学 2022-04-29 Gregor Gantner , Dirk Praetorius