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We study the asymptotics of the heat trace $\Tr\{fPe^{-tP^2}\}$ where $P$ is an operator of Dirac type, where $f$ is an auxiliary smooth smearing function which is used to localize the problem, and where we impose spectral boundary…

数学物理 · 物理学 2009-11-10 P. Gilkey , K. Kirsten , J. H. Park

The formulation of gauge theories on compact Riemannian manifolds with boundary leads to partial differential operators with Gilkey--Smith boundary conditions, whose peculiar property is the occurrence of both normal and tangential…

数学物理 · 物理学 2011-04-15 Ivan G. Avramidi , Giampiero Esposito

The spectral problem where the field satisfies Dirichlet conditions on one part of the boundary of the relevant domain and Neumann on the remainder is discussed. It is shown that there does not exist a classical asymptotic expansion for…

高能物理 - 理论 · 物理学 2007-05-23 Stuart Dowker , Peter Gilkey , Klaus Kirsten

We study new invariants of elliptic partial differential operators acting on sections of a vector bundle over a closed Riemannian manifold that we call the relativistic heat trace and the quantum heat traces. We obtain some reduction…

数学物理 · 物理学 2017-02-28 Ivan G Avramidi

The high temperature asymptotics of the Helmholtz free energy of electromagnetic field subjected to boundary conditions with spherical and cylindrical symmetries are constructed by making use of a general expansion in terms of heat kernel…

高能物理 - 理论 · 物理学 2009-11-07 M. Bordag , V. V. Nesterenko , I. G. Pirozhenko

In this letter we present the calculation of the $a_{5}$ heat kernel coefficient of the heat operator trace for a partial differential operator of Laplace type on a compact Riemannian manifold with Dirichlet and Robin boundary conditions.

高能物理 - 理论 · 物理学 2010-04-06 Klaus Kirsten

For a class of Laplace exponents we derive the heat trace asymptotics of the generator of the corresponding subordinate Brownian motion on Euclidean space. The terms in the asymptotic expansion are found to depend both on the geometry of…

概率论 · 数学 2015-10-28 Matthias Fahrenwaldt

In this work, we study the asymptotic behaviour of solutions to the heat equation in exterior domains, i.e., domains which are the complement of a smooth compact set in $\mathbb{R}^N$. Different homogeneous boundary conditions are…

偏微分方程分析 · 数学 2024-10-18 Joaquín Domínguez-de-Tena , Aníbal Rodríguez-Bernal

We study second-order elliptic partial differential operators acting on sections of vector bundles over a compact manifold with boundary with a non-scalar positive definite leading symbol. Such operators, called non-Laplace type operators,…

数学物理 · 物理学 2011-02-17 Ivan G. Avramidi

We consider a general second-order elliptic differential operator on a domain with a cylindrical end. We impose Dirichlet boundary conditions on the boundary with the exception of a small set, where we impose Neumann boundary conditions.…

谱理论 · 数学 2017-10-06 André Froehly

This paper is devoted to establish the most essential connections of the eigenvalue problems for the Laplace operator, Lam\'{e} operator, Stokes operator, buckling operator and clamped plate operator. We show that the $k$-th Stokes…

微分几何 · 数学 2024-06-26 Genqian Liu

We study the heat kernel asymptotics for the Laplace type differential operators on vector bundles over Riemannian manifolds. In particular this includes the case of the Laplacians acting on differential p-forms. We extend our results…

微分几何 · 数学 2007-05-23 Iosif Polterovich

Let $P$ be a Laplace type operator acting on a smooth hermitean vector bundle $V$ of fiber $\mathbb{C}^N$ over a compact Riemannian manifold given locally by $P= - [g^{\mu\nu} u(x)\partial_\mu\partial_\nu + v^\nu(x)\partial_\nu + w(x)]$…

微分几何 · 数学 2019-01-07 Bruno Iochum , Thierry Masson

We study the large-time and small-time asymptotic behaviors of the spectral heat content for time-changed stable processes, where the time change belongs to a large class of inverse subordinators. For the large-time behavior, the spectral…

概率论 · 数学 2022-05-18 Kei Kobayashi , Hyunchul Park

We study the asymptotic behavior of the solutions of a spectral problem for the Laplacian in a domain with rapidly oscillating boundary. We consider the case where the eigenvalue of the limit problem is multiple. We construct the leading…

偏微分方程分析 · 数学 2009-11-11 Youcef Amirat , Gregory A. Chechkin , Rustem R. Gadyl'shin

We study heat traces associated with positive unbounded operators with compact inverses. With the help of the inverse Mellin transform we derive necessary conditions for the existence of a short time asymptotic expansion. The conditions are…

数学物理 · 物理学 2017-02-06 Michał Eckstein , Artur Zając

We study the asymptotic behaviour of the heat content on a compact Riemannian manifold with boundary and with singular specific heat and singular initial temperature distributions. Assuming the existence of a complete asymptotic series we…

偏微分方程分析 · 数学 2015-06-03 M. van den Berg , P. Gilkey

We present examples of isospectral operators that do not have the same heat content. Several of these examples are planar polygons that are isospectral for the Laplace operator with Dirichlet boundary conditions. These include examples with…

谱理论 · 数学 2017-05-17 M. van den Berg , E. B. Dryden , T. Kappeler

We study the asymptotics of solutions of logistic type equations with fractional Laplacian as time goes to infinity and as the exponent in nonlinear part goes to infinity. We prove strong convergence of solutions in the energy space and…

偏微分方程分析 · 数学 2023-08-22 Tomasz Klimsiak

We discuss the exotic properties of the heat-trace asymptotics for a regular-singular operator with general boundary conditions at the singular end, as observed by Falomir, Muschietti, Pisani and Seeley as well as by Kirsten, Loya and Park.…

谱理论 · 数学 2015-06-12 Boris Vertman