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Upper and lower bounds on the heat kernel on complete Riemannian manifolds were obtained in a series of pioneering works due to Cheng-Li-Yau, Cheeger-Yau and Li-Yau. However, these estimates do not give a complete picture of the heat kernel…

Analysis of PDEs · Mathematics 2017-05-29 Xi Chen , Andrew Hassell

We study the heat content for Laplacians on compact, finite metric graphs with Dirichlet conditions imposed at the "boundary" (i.e., a given set of vertices). We prove a closed formula of combinatorial flavour, as it is expressed as a sum…

Spectral Theory · Mathematics 2025-02-14 Patrizio Bifulco , Delio Mugnolo

We study strong ratio limit properties and the exact long time asymptotics of the heat kernel of a general second-order parabolic operator which is defined on a noncompact Riemannian manifold.

Analysis of PDEs · Mathematics 2007-05-23 Yehuda Pinchover

In this paper we focus on the initial value problem for a hyperbolic-elliptic coupled system of a radiating gas in multi-dimensional space. By using a time-weighted energy method, we obtain the global existence and optimal decay estimates…

Analysis of PDEs · Mathematics 2010-03-16 Yongqin Liu , Shuichi Kawashima

In this note we consider a heat trace expansion on a manifold with wedge-like singularity. We show that there are two terms in the expansion that contain information about the presence of the singularity, namely the logarithmic term…

Spectral Theory · Mathematics 2017-10-18 Asilya Suleymanova

We calculate heat invariants of arbitrary Riemannian manifolds without boundary. Every heat invariant is expressed in terms of powers of the Laplacian and the distance function. Our approach is based on a multi-dimensional generalization of…

Differential Geometry · Mathematics 2007-05-23 Iosif Polterovich

We study the large-time behavior of the continuous-time heat kernel and of solutions to the heat equation on homogeneous trees. First, we derive sharp asymptotic formulas for the heat kernel as $t\to\infty$. Second, using them, we show that…

Analysis of PDEs · Mathematics 2026-03-13 Effie Papageorgiou

We discuss a variety of developments in the study of large time behavior of the positive minimal heat kernel of a time independent (not necessarily symmetric) second-order parabolic operator defined on a domain M in $R^d$, or more…

Analysis of PDEs · Mathematics 2012-09-05 Yehuda Pinchover

This is the second of a series of papers dealing with the asymptotic behavior of certain integrals occuring in the description of the spectrum of an invariant elliptic operator on a compact Riemannian manifold carrying the action of a…

Symplectic Geometry · Mathematics 2009-06-15 Pablo Ramacher

We prove a bound on the heat trace of the Neumann Laplacian on a convex domain that captures the first two terms in its small-time expansion, but is valid for all times and depends on the underlying domain only through very simple geometric…

Analysis of PDEs · Mathematics 2026-01-13 Rupert L. Frank , Simon Larson

We investigate the asymptotic behavior, in the long time limit, of the random homology associated to realizations of stochastic diffusion processes on a compact Riemannian manifold. In particular a rigidity result is established: if the…

Probability · Mathematics 2024-06-26 Artem Galkin , Mauro Mariani

We consider a model of heat conduction which consists of a finite nonlinear chain coupled to two heat reservoirs at different temperatures. We study the low temperature asymptotic behavior of the invariant measure. We show that, in this…

Mathematical Physics · Physics 2009-10-31 Luc Rey-Bellet , Lawrence E. Thomas

The spectral heat content is investigated for time-changed killed Brownian motions on C1,1 open sets, where the time change is given by either a subordinator or an inverse subordinator, with the underlying Laplace exponent being regularly…

Probability · Mathematics 2021-10-26 Kei Kobayashi , Hyunchul Park

We show that for ultracontractive irreducible Dirichlet metric measure spaces, the Dirichlet spectrum is discrete for a restriction to any connected open set without any assumption on regularity of the boundary. The main applications…

Probability · Mathematics 2024-10-30 Marco Carfagnini , Maria Gordina , Alexander Teplyaev

We study a nonlinear semigroup associated to a nonexpansive mapping on a Hadamard space and establish its weak convergence to a fixed point. A discrete-time counterpart of such a semigroup, the proximal point algorithm, turns out to have…

Functional Analysis · Mathematics 2014-07-25 Miroslav Bacak , Simeon Reich

We study the heat trace for both the drifting Laplacian as well as Schr\"odinger operators on compact Riemannian manifolds. In the case of a finite regularity potential or weight function, we prove the existence of a partial (six term)…

Differential Geometry · Mathematics 2020-12-11 Nelia Charalambous , Julie Rowlett

We study the weighted heat trace asymptotics of an operator of Laplace type with mixed boundary conditions where the weight function exhibits radial blowup. We give formulas for the first three boundary terms in the expansion in terms of…

Analysis of PDEs · Mathematics 2010-06-30 Michiel van den Berg , Peter Gilkey , Klaus Kirsten

Estimates are obtained for the expected volume of intersection of independent Wiener sausages in Euclidean space in the small time limit. The asymptotic behaviour of the weighted diagonal heat kernel norm on compact Riemannian manifolds…

Analysis of PDEs · Mathematics 2007-05-23 M. van den Berg , P. Gilkey

We estimate the heat kernel on a closed Riemannian manifold $M$, with $dim(M)\geq 3$, evolving under the Ricci-harmonic map flow and the result depends on some constants arising from a Sobolev imbedding theorem. In a special case, when the…

Differential Geometry · Mathematics 2013-09-03 Mihai Băileşteanu

We study the heat trace asymptotics associated with the Steklov eigenvalue problem on a Riemannian manifold with boundary. In particular, we describe the structure of the Steklov heat invariants and compute the first few of them explicitly…

Spectral Theory · Mathematics 2013-09-02 Iosif Polterovich , David A. Sher
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