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In this article we study transition probabilities of a class of subordinate Brownian motions. Under mild assumptions on the Laplace exponent of the corresponding subordinator, sharp two sided estimates of the transition probability are…

Probability · Mathematics 2016-08-01 Ante Mimica

In this paper, we consider transient subordinate Brownian motion X in R^d, d \geq 1, where the Laplace exponent \phi of the corresponding subordinator satisfies some mild conditions. The scaleinvariant Harnack inequality is proved for X. We…

Probability · Mathematics 2012-04-06 Panki Kim , Ante Mimica

We study the heat trace asymptotics defined by a time dependent family of operators of Laplace type which naturally appears for time dependent metrics.

High Energy Physics - Theory · Physics 2008-11-26 Peter Gilkey , Klaus Kirsten , JeongHyeong Park

We develop a new method for the calculation of the heat trace asymptotics of the Laplacian on symmetric spaces that is based on a representation of the heat semigroup in form of an average over the Lie group of isometries and obtain a…

Differential Geometry · Mathematics 2008-11-26 Ivan G Avramidi

We consider a transient Brownian motion reflected obliquely in a two-dimensional wedge. A precise asymptotic expansion of Green's functions is found in all directions. To this end, we first determine a kernel functional equation connecting…

Probability · Mathematics 2024-09-30 Sandro Franceschi , Irina Kourkova , Maxence Petit

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

In this article densities (and their derivatives) of subordinators and inverse subordinators are considered. Under minor restrictions, generally milder than the existing in the literature, using a useful modification of the saddle point…

Probability · Mathematics 2024-02-12 Giacomo Ascione , Mladen Savov , Bruno Toaldo

In this paper we analyze the small-t asymptotic expansion of the trace of the heat kernel associated with a Laplace operator endowed with a spherically symmetric polynomially confining potential on the unbounded, d-dimensional Euclidean…

Mathematical Physics · Physics 2014-05-15 Guglielmo Fucci

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

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…

Mathematical Physics · Physics 2017-02-06 Michał Eckstein , Artur Zając

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

Analysis of PDEs · Mathematics 2008-11-03 M. van den Berg , P. Gilkey , K. Kirsten , R. Seeley

We derive a detailed asymptotic expansion of the heat trace for the Laplace-Beltrami operator on functions on manifolds with conic singularities, using the Singular Asymptotics Lemma of Jochen Bruening and Robert T. Seeley [BS]. In the…

Spectral Theory · Mathematics 2017-10-17 Asilya Suleymanova

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

Heat-invariants are a class of spectral invariants of Laplace-type operators on compact Riemannian manifolds that contain information about the geometry of the manifold, e.g., the metric and connection. Since Brownian motion solves the heat…

Operator Algebras · Mathematics 2018-02-01 Jason Hancox , Tobias Hartung

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

In this paper, we discuss estimates of transition densities of subordinate Brownian motions in open subsets of Euclidean space. When $D$ is a $C^{1,1}$ domain, we establish sharp two-sided estimates for the transition densities of a large…

Probability · Mathematics 2018-04-25 Panki Kim , Ante Mimica

This paper extends results of M. van den Berg on two-term asymptotics for the trace of Sch\"odinger operators when the Laplacian is replaced by non-local (integral) operators corresponding to rotationally symmetric stable processes and…

Spectral Theory · Mathematics 2014-02-26 Rodrigo Bañuelos , Selma Yıldırım Yolcu

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

This is a mini-review of the heat kernel expansion for generalized Laplacians on various noncommutative spaces. Applications to the spectral action principle, renormalization of noncommutative theories and anomalies are also considered.

High Energy Physics - Theory · Physics 2008-12-19 Dmitri V. Vassilevich

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
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