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HEAT KERNEL AND GREEN FUNCTION ESTIMATES ON NONCOMPACT SYMMETRIC SPACES
 

Summary: HEAT KERNEL AND GREEN FUNCTION ESTIMATES
ON NONCOMPACT SYMMETRIC SPACES
Jean­Philippe Anker & Lizhen Ji
In memory of Carl S. Herz (1930­1995)
1991 Mathematics Subject Classification. 22E30, 22E46, 31C12, 43A80, 43A85, 43A90, 58G11.
Key words and phrases. Green function, heat kernel, Iwasawa AN groups, Poisson semigoup, reduc-
tive Lie groups, semisimple Lie groups, spherical functions, symmetric spaces (Riemannian, noncompact).
First author partially supported by the European Commission (HCM 1994­1997 Network Fourier
Analysis and TMR 1998­2001 Network Harmonic Analysis). Second author partially supported by the
U.S.A. National Science Foundation (postdoctoral fellowship DMS 9407427 and grant DMS 9704434)
Typeset by AMS-TEX
1
2 JEAN­PHILIPPE ANKER & LIZHEN JI
1. Introduction
Let X = G/K be a noncompact Riemannian symmetric space. Although basic har-
monic analysis on X has been settled in the sixties (see [GV], [Hel2], [Hel3], for thorough
presentations of this material), it is only recently that it has been used efficiently to pro-
duce sharp and complete results comparable to the Euclidean or the compact case ([An3],
[An5], [BOS], [CGM1], [CGM2], [MNS], [Str], ... ). The reason may be that time was
needed to digest and refine the formidable work of Harish­Chandra and his followers.

  

Source: Anker, Jean-Philippe - Laboratoire de Mathématiques et Applications, Physique Mathématique, Université d'Orléans
Ecole Polytechnique, Centre de mathématiques

 

Collections: Mathematics