Download or read book Harmonic Analysis and Representation Theory for Groups Acting on Homogenous Trees written by and published by . This book was released on 1991 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt: These notes treat in full detail the theory of representations of the group of automorphisms of a homogeneous tree.

Download or read book Harmonic Analysis and Representation Theory for Groups Acting on Homogenous Trees written by Alessandro Figá-Talamanca and published by Cambridge University Press. This book was released on 1991-06-28 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Harmonic Analysis and Representation Theory for Groups Acting on Homogenous Trees written by Alessandro Figà-Talamanca and published by . This book was released on 2014-05-14 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: These notes treat in full detail the theory of representations of the group of automorphisms of a homogeneous tree.

Download or read book Harmonic Analysis and Representation Theory for Groups Acting on Homogenous Trees written by Alessandro Figá-Talamanca and published by Cambridge University Press. This book was released on 1991-06-28 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Harmonic Analysis and Representation Theory for Groups Acting on Homogeneous Trees written by and published by . This book was released on 1955 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Discrete Groups Expanding Graphs and Invariant Measures written by Alex Lubotzky and published by Springer Science & Business Media. This book was released on 2010-02-17 with total page 201 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last ?fteen years two seemingly unrelated problems, one in computer science and the other in measure theory, were solved by amazingly similar techniques from representation theory and from analytic number theory. One problem is the - plicit construction of expanding graphs («expanders»). These are highly connected sparse graphs whose existence can be easily demonstrated but whose explicit c- struction turns out to be a dif?cult task. Since expanders serve as basic building blocks for various distributed networks, an explicit construction is highly des- able. The other problem is one posed by Ruziewicz about seventy years ago and studied by Banach [Ba]. It asks whether the Lebesgue measure is the only ?nitely additive measure of total measure one, de?ned on the Lebesgue subsets of the n-dimensional sphere and invariant under all rotations. The two problems seem, at ?rst glance, totally unrelated. It is therefore so- what surprising that both problems were solved using similar methods: initially, Kazhdan’s property (T) from representation theory of semi-simple Lie groups was applied in both cases to achieve partial results, and later on, both problems were solved using the (proved) Ramanujan conjecture from the theory of automorphic forms. The fact that representation theory and automorphic forms have anything to do with these problems is a surprise and a hint as well that the two questions are strongly related.

Download or read book Harmonic Analysis for Anisotropic Random Walks on Homogeneous Trees written by Alessandro Figà-Talamanca and published by American Mathematical Soc.. This book was released on 1994 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work presents a detailed study of the anisotropic series representations of the free product group Z/2Z*...*Z/2Z. These representations are infinite dimensional, irreducible, and unitary and can be divided into principal and complementary series. Anisotropic series representations are interesting because, while they are not restricted from any larger continuous group in which the discrete group is a lattice, they nonetheless share many properties of such restrictions. The results of this work are also valid for nonabelian free groups on finitely many generators.

Download or read book Trends in Mathematical Physics Research written by Charles V. Benton and published by Nova Publishers. This book was released on 2004 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Physics and mathematics have always been closely intertwined, with developments in one field frequently inspiring the other. Currently, there are many unsolved problems in physics which will likely require new innovations in mathematical physics. Mathematical physics is concerned with problems in statistical mechanics, atomic and molecular physics, quantum field theory, and, in general, with the mathematical foundations of theoretical physics. This includes such subjects as scattering theory for n bodies, quantum mechanics (both non-relativistic and relativistic), atomic and molecular physics, the existence and properties of the phases of model ferromagnets, the stability of matter, the theory of symmetry and symmetry breaking in quantum field theory (both in general and in concrete models), and mathematical developments in functional analysis and algebra to which such subjects lead. This book presents leading-edge research in this fast-moving field.

Download or read book Infinite Dimensional Spherical Analysis and Harmonic Analysis for Groups Acting on Homogeneous Trees written by Emil Axelgaard and published by . This book was released on 2012 with total page 121 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Topics in Harmonic Analysis Related to the Littlewood Paley Theory written by Elias M. Stein and published by Princeton University Press. This book was released on 1970-02-21 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work deals with an extension of the classical Littlewood-Paley theory in the context of symmetric diffusion semigroups. In this general setting there are applications to a variety of problems, such as those arising in the study of the expansions coming from second order elliptic operators. A review of background material in Lie groups and martingale theory is included to make the monograph more accessible to the student.

Download or read book Introduction to Analysis on Graphs written by Alexander Grigor’yan and published by American Mathematical Soc.. This book was released on 2018-08-23 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: A central object of this book is the discrete Laplace operator on finite and infinite graphs. The eigenvalues of the discrete Laplace operator have long been used in graph theory as a convenient tool for understanding the structure of complex graphs. They can also be used in order to estimate the rate of convergence to equilibrium of a random walk (Markov chain) on finite graphs. For infinite graphs, a study of the heat kernel allows to solve the type problem—a problem of deciding whether the random walk is recurrent or transient. This book starts with elementary properties of the eigenvalues on finite graphs, continues with their estimates and applications, and concludes with heat kernel estimates on infinite graphs and their application to the type problem. The book is suitable for beginners in the subject and accessible to undergraduate and graduate students with a background in linear algebra I and analysis I. It is based on a lecture course taught by the author and includes a wide variety of exercises. The book will help the reader to reach a level of understanding sufficient to start pursuing research in this exciting area.

Download or read book Selected Papers on Harmonic Analysis Groups and Invariants written by and published by . This book was released on 1998 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Harmonic Analysis on Homogeneous Spaces and Representation Theory of Groups written by and published by . This book was released on 1991 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Harmonic Analysis and Representations of Semisimple Lie Groups written by Michel Cahen and published by . This book was released on 1980 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Harmonic Analysis and Group Representations written by Alessandro Figà-Talamanca and published by . This book was released on 1982 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Paperbound Books in Print written by and published by . This book was released on 1992 with total page 1614 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Representation Theory and Noncommutative Harmonic Analysis written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: