Gelfand Triples and Their Hecke Algebras

Beschreibung

This monograph is the first comprehensive treatment of multiplicity-free induced representations of finite groups as a generalization of finite Gelfand pairs. Up to now, researchers have been somehow reluctant to face such a problem in a general situation, and only partial results were obtained in the one-dimensional case. Here, for the first time, new interesting and important results are proved. In particular, after developing a general theory (including the study of the associated Hecke algebras and the harmonic analysis of the corresponding spherical functions), two completely new highly nontrivial and significant examples (in the setting of linear groups over finite fields) are examined in full detail. The readership ranges from graduate students to experienced researchers in Representation Theory and Harmonic Analysis.
This monograph is the first comprehensive treatment of multiplicity-free induced representations of finite groups as a generalization of finite Gelfand pairs. Up to now, researchers have been somehow reluctant to face such a problem in a general situation, and only partial results were obtained in the one-dimensional case. Here, for the first time, new interesting and important results are proved. In particular, after developing a general theory (including the study of the associated Hecke algebras and the harmonic analysis of the corresponding spherical functions), two completely new highly nontrivial and significant examples (in the setting of linear groups over finite fields) are examined in full detail. The readership ranges from graduate students to experienced researchers in Representation Theory and Harmonic Analysis.

This is the first book on an essentially new subject. It will serve as a reference for future developments. The treatment is self-contained and therefore accessible to a wide audience. All arguments are presented in full generality. Includes two new highly nontrivial and significant examples which are analyzed in full detail.

Autor*in

Tullio Ceccherini-Silberstein

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Gelfand Pair General Linear Group over a Finite Field Hecke Algebra Induced Representation Spherical Function

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“The volume is an interesting and important contribution to the theory of multiplicity-free representations of finite groups and their spherical functions.” (Antoni Wawrzyńczyk, Mathematical Reviews, June, 2023)
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