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Let $P$ be an operator of Dirac type on a compact Riemannian manifold with smooth boundary. We impose spectral boundary conditions and study the asymptotics of the heat trace of the associated operator of Laplace type.

High Energy Physics - Theory · Physics 2007-05-23 Stuart Dowker , Peter Gilkey , Klaus Kirsten

The Zaremba boundary-value problem is a boundary value problem for Laplace-type second-order partial differential operators acting on smooth sections of a vector bundle over a smooth compact Riemannian manifold with smooth boundary but with…

Mathematical Physics · Physics 2007-05-23 Ivan Avramidi

We discuss the heat content asymptotics associated with the heat flow out of a smooth compact manifold in a larger compact Riemannian manifold. Although there are no boundary conditions, the corresponding heat content asymptotics involve…

Analysis of PDEs · Mathematics 2013-06-27 M. van den Berg , P. Gilkey

Let $P$ be an operator of Dirac type on a compact Riemannian manifold with smooth boundary. We impose spectral boundary conditions and study the asymptotics of the heat trace of the associated operator of Laplace type.

Mathematical Physics · Physics 2007-05-23 P. B. Gilkey , K. Kirsten

We study the fifth term in the asymptotic expansion of the heat operator trace for a partial differential operator of Laplace type on a compact Riemannian manifold with Dirichlet or Neumann boundary conditions.

High Energy Physics - Theory · Physics 2008-11-26 Thomas P. Branson , Peter B. Gilkey , Dmitri V. Vassilevich

The heat trace asymptotics are discussed for operators of Laplace type with Dirichlet, Robin, spectral, D/N, and transmittal boundary conditions. The heat content asymptotics are discussed for operators with time dependent coefficients and…

Mathematical Physics · Physics 2009-11-07 Peter B. Gilkey , Klaus Kirsten , JeongHyeong Park , Dmitri Vassilevich

We study the small-time asymptotics of the heat content of smooth non-characteristic domains of a general rank-varying sub-Riemannian structure, equipped with an arbitrary smooth measure. By adapting to the sub-Riemannian case a technique…

Analysis of PDEs · Mathematics 2023-01-03 Luca Rizzi , Tommaso Rossi

We study the heat content asymptotics with either Dirichlet or Robin boundary conditions where the initial temperature exhibits radial blowup near the boundary. We show that there is a complete small-time asymptotic expansion and give…

Analysis of PDEs · Mathematics 2008-03-06 M. van den Berg , P. Gilkey , R. Seeley

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…

Analysis of PDEs · Mathematics 2015-06-03 M. van den Berg , P. Gilkey

We study the heat content asymptotics on a Riemannian manifold with smoooth boundary defined by Dirichlet, Neumann, transmittal and transmission boundary conditions.

Mathematical Physics · Physics 2007-05-23 Peter Gilkey , Klaus Kirsten

We calculate the coefficient $a_5$ of the heat kernel asymptotics for an operator of Laplace type with mixed boundary conditions on a general compact manifold.

High Energy Physics - Theory · Physics 2009-10-31 T. P. Branson , P. B. Gilkey , K. Kirsten , D. V. Vassilevich

In this paper we compute the coefficients of the heat kernel asymptotic expansion for Laplace operators acting on scalar functions defined on the so called spherical suspension (or Riemann cap) subjected to Dirichlet boundary conditions. By…

Mathematical Physics · Physics 2012-08-21 Guglielmo Fucci , Klaus Kirsten

We compute the first 5 terms in the short-time heat trace asymptotics expansion for an operator of Laplace type with transfer boundary conditions using the functorial properties of these invariants.

High Energy Physics - Theory · Physics 2007-05-23 Peter Gilkey , Klaus Kirsten , Dmitri Vassilevich

Let $P$ be an operator of Dirac type and let $D=P^2$ be the associated operator of Laplace type. We impose spectral boundary conditions and study the leading heat content coefficients for $D$.

Mathematical Physics · Physics 2009-11-10 P. Gilkey , K. Kirsten , JH. Park

The relative heat content associated with a subset $\Omega\subset M$ of a sub-Riemannian manifold, is defined as the total amount of heat contained in $\Omega$ at time $t$, with uniform initial condition on $\Omega$, allowing the heat to…

Analysis of PDEs · Mathematics 2024-11-06 Andrei Agrachev , Luca Rizzi , Tommaso Rossi

We study the asymptotic behavior of the heat content on a compact Riemannian manifold with boundary and with singular specific heat and singular initial temperature distributions imposing Robin boundary conditions. Assuming the existence of…

Analysis of PDEs · Mathematics 2012-12-07 M. van den Berg , P. Gilkey , H. Kang

It is well-known that the asymptotic expansion of the trace of the heat kernel for Laplace operators on smooth compact Riemmanian manifolds can be obtained through termwise integration of the asymptotic expansion of the on-diagonal heat…

Mathematical Physics · Physics 2018-10-11 Guglielmo Fucci

We consider the basic heat operator on functions on a Riemannian foliation of a compact, Riemannian manifold, and we show that the trace of this operator has a particular short time asymptotic expansion. The coefficients in this expansion…

Differential Geometry · Mathematics 2011-04-07 Ken Richardson

We study the short time heat content asymptotics for spectral boundary conditions. The heat content coefficients are shown to be non-local and some preliminary results concerning the structure of the first few terms are given.

Mathematical Physics · Physics 2007-05-23 Peter Gilkey , Klaus Kirsten , JeongHyeong Park

This paper is devoted to study the asymptotic expansion of the heat trace of the Dirichlet-to-Neumann map for the thermoelastic equation on a Riemannian manifold with doundary. By providing a method we can obtain all the coefficients of the…

Analysis of PDEs · Mathematics 2022-06-06 Genqian Liu , Xiaoming Tan
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