Opuscula Mathematica
Opuscula Math. 33, no. 4 (), 751-762
Opuscula Mathematica

On Gelfand pairs associated to transitive groupoids

Abstract. Let \(G\) be a topological locally compact, Hausdorff and second countable groupoid with a Haar system and \(K\) a compact subgroupoid of \(G\) with a Haar system too. \((G,K)\) is a Gelfand pair if the algebra of bi-\(K\)-invariant functions is commutative under convolution. In this paper, we give a characterization of Gelfand pairs associated to transitive groupoids which generalize a well-known result in the groups case. Using this result, we prove that the study of Gelfand pairs associated to transitive groupoids is equivalent to that of Gelfand pairs associated to its isotropy groups.
Keywords: transitive groupoids, groupoid representation, Gelfand pairs.
Mathematics Subject Classification: 22A22, 46JXX.
Cite this article as:
Ibrahima Toure, Kinvi Kangni, On Gelfand pairs associated to transitive groupoids, Opuscula Math. 33, no. 4 (2013), 751-762, http://dx.doi.org/10.7494/OpMath.2013.33.4.751
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ISSN 1232−9274, e-ISSN 2300−6919, DOI https://doi.org/10.7494/OpMath
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