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Gelfand Triples and Their Hecke Algebras

Harmonic Analysis for Multiplicity-Free Induced Representations of Finite Groups

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  • © 2020

Overview

Authors:
  1. Tullio Ceccherini-Silberstein

    1. Dipartimento di Ingegneria, Università degli Studi del Sannio, Benevento, Italy

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  2. Fabio Scarabotti

    1. Dipartimento SBAI, Università degli Studi di Roma “La Sapienza”, Roma, Italy

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  3. Filippo Tolli

    1. Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, Roma, Italy

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  • 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.

Part of the book series: Lecture Notes in Mathematics (LNM, volume 2267)

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Table of contents (6 chapters)

  1. Front Matter

    Pages i-xviii
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  2. Preliminaries

    • Tullio Ceccherini-Silberstein, Fabio Scarabotti, Filippo Tolli
    Pages 1-9

  3. Hecke Algebras

    • Tullio Ceccherini-Silberstein, Fabio Scarabotti, Filippo Tolli
    Pages 11-29

  4. Multiplicity-Free Triples

    • Tullio Ceccherini-Silberstein, Fabio Scarabotti, Filippo Tolli
    Pages 31-52

  5. The Case of a Normal Subgroup

    • Tullio Ceccherini-Silberstein, Fabio Scarabotti, Filippo Tolli
    Pages 53-69

  6. Harmonic Analysis of the Multiplicity-Free Triple \((\mathrm {GL}(2,\mathbb F_q), C, \nu )\)

    • Tullio Ceccherini-Silberstein, Fabio Scarabotti, Filippo Tolli
    Pages 71-94

  7. Harmonic Analysis of the Multiplicity-Free Triple \((\mathrm {GL}(2,\mathbb F_{q^2}), \mathrm {GL}(2,\mathbb F_{q}), \rho _\nu )\)

    • Tullio Ceccherini-Silberstein, Fabio Scarabotti, Filippo Tolli
    Pages 95-119

  8. Back Matter

    Pages 121-140
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Keywords

About this book

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.

Reviews

“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)

Authors and Affiliations

  • Dipartimento di Ingegneria, Università degli Studi del Sannio, Benevento, Italy

    Tullio Ceccherini-Silberstein

  • Dipartimento SBAI, Università degli Studi di Roma “La Sapienza”, Roma, Italy

    Fabio Scarabotti

  • Dipartimento di Matematica e Fisica, Università degli Studi Roma Tre, Roma, Italy

    Filippo Tolli

About the authors

Tullio Ceccherini-Silberstein obtained his BS in Mathematics (1990) from the University of Rome “La Sapienza” and his PhD in Mathematics (1994) from UCLA. Currently, he is professor of Mathematical Analysis at the University of Sannio (Benevento). He is an Editor of the EMS journal “Groups, Geometry, and Dynamics”. He has authored more than 90 research articles in Functional and Harmonic Analysis, Group Theory, Ergodic Theory and Dynamical Systems, and Theoretical Computer Science and has co-authored 5 monographs on Harmonic Analysis and Representation Theory. 


Fabio Scarabotti obtained his BS in Mathematics (1989) and his PhD in Mathematics (1994) from the University of Rome “La Sapienza”.  Currently, he is professor of Mathematical Analysis at the University of Rome “La Sapienza”. He has authored more than 40 research articles in Harmonic Analysis, Group Theory, Combinatorics, Ergodic Theory and Dynamical Systems, and TheoreticalComputer Science and has co-authored 4 monographs on Harmonic Analysis and Representation Theory.


Filippo Tolli obtained his BS in Mathematics (1991) from the University of Rome “La Sapienza” and his PhD in Mathematics (1996) from UCLA. Currently, he is professor of Mathematical Analysis at the University of Roma Tre. He has authored more than 30 research articles in Harmonic Analysis, Group Theory, Combinatorics, Lie Groups and Partial Differential Equations and has co-authored 4 monographs on Harmonic Analysis and Representation Theory.



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