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Harmonic analysis and representation theory for groups acting on homogeneous trees /

These notes treat in full detail the theory of representations of the group of automorphisms of a homogeneous tree. The unitary irreducible representations are classified in three types: a continuous series of spherical representations; two special representations; and a countable series of cuspidal...

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Detalles Bibliográficos
Clasificación:Libro Electrónico
Autor principal: Figà-Talamanca, Alessandro, 1938-
Otros Autores: Nebbia, Claudio
Formato: Electrónico eBook
Idioma:Inglés
Publicado: Cambridge ; New York : Cambridge University Press, 1991.
Colección:London Mathematical Society lecture note series ; 162.
Temas:
Acceso en línea:Texto completo

MARC

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100 1 |a Figà-Talamanca, Alessandro,  |d 1938- 
245 1 0 |a Harmonic analysis and representation theory for groups acting on homogeneous trees /  |c Alessandro Figà-Talamanca and Claudio Nebbia. 
260 |a Cambridge ;  |a New York :  |b Cambridge University Press,  |c 1991. 
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490 1 |a London Mathematical Society lecture note series ;  |v 162 
504 |a Includes bibliographical references (pages 138-143) and index. 
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520 |a These notes treat in full detail the theory of representations of the group of automorphisms of a homogeneous tree. The unitary irreducible representations are classified in three types: a continuous series of spherical representations; two special representations; and a countable series of cuspidal representations as defined by G.I. Ol'shiankii. Several notable subgroups of the full automorphism group are also considered. The theory of spherical functions as eigenvalues of a Laplace (or Hecke) operator on the tree is used to introduce spherical representations and their restrictions to discrete subgroups. This will be an excellent companion for all researchers into harmonic analysis or representation theory. 
505 0 |a Cover; Title; Copyright; Contents; Preface; Chapter I; 1) Graphs and trees; 2) The free group as a tree; 3) Automorphisms of a tree; 4) The group of automorphisms Aut(X); 5) Compact maximal subgroups; 6) Discrete subgroups; 7) Cayley graphs which are trees; 8) Amenable subgroups; 9) Orbits of amenable subgroups; 10) Groups with transitive action on the boundary; 11) Notes and remarks; Chapter II; 1) Eigenfunctions of the Laplace operator; 2) Spherical functions; 3) Intertwining operators; 4) The Gelfand pair (G, K); 5) Spherical representations 
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