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Harmonic functions on the real hyperbolic ball II Hardy-Sobolev and Lipschitz spaces

✍ Scribed by Sandrine Grellier; Philippe Jaming


Publisher
John Wiley and Sons
Year
2004
Tongue
English
Weight
309 KB
Volume
268
Category
Article
ISSN
0025-584X

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✦ Synopsis


Abstract

In this paper, we pursue the study of harmonic functions on the real hyperbolic ball started in [13]. Our focus here is on the theory of Hardy‐Sobolev and Lipschitz spaces of these functions. We prove here that these spaces admit Fefferman‐Stein like characterizations in terms of maximal and square functionals. We further prove that the hyperbolic harmonic extension of Lipschitz functions on the boundary extend into Lipschitz functions on the whole ball. In doing so, we exhibit differences of behaviour of derivatives of harmonic functions depending on the parity of the dimension of the ball and on the parity of the order of derivation. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)


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