Abstract
In this paper we study invariant means on and amenability of double coset spaces. We prove the amenability of Gelfand pairs. As an application we prove a stability theorem for a functional equation related to spherical functions.
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The research was supported by the Hungarian National Foundation for Scientific Research (OTKA), Grant No. K111651.
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Székelyhidi, L. Invariant means on double coset spaces. Period Math Hung 75, 58–65 (2017). https://doi.org/10.1007/s10998-017-0196-x
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DOI: https://doi.org/10.1007/s10998-017-0196-x