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Functions of conditionally negative type on Kazhdan groups


Authors: Annabel Deutsch and A. Guyan Robertson
Journal: Proc. Amer. Math. Soc. 123 (1995), 919-926
MSC: Primary 22D10; Secondary 05C25, 43A35, 43A65
DOI: https://doi.org/10.1090/S0002-9939-1995-1224614-2
MathSciNet review: 1224614
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Abstract: An explicit bound is given for functions of conditionally negative type on Kazhdan groups, in terms of a set of generators and the corresponding Kazhdan constants. This is used to estimate how far a set in an infinite measure space can be translated by the action of a Kazhdan group. Some estimates are given for Kazhdan constants.


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Additional Information

DOI: https://doi.org/10.1090/S0002-9939-1995-1224614-2
Article copyright: © Copyright 1995 American Mathematical Society

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