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This book is devoted to the theory of group representations, a young and promising area of modern algebra. It provides a detailed exposition of several central topics in the field, leading to the most current advances and developments. Much of the included material has never been available in book form before. It is intended for a broad audience of researchers and graduate students, working in abstract algebra and its many applications.
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This book is based on a graduate course taught at the University of Paris. The authors aim to treat the basic theory of representations of finite groups of Lie type, such as linear, unitary, orthogonal and symplectic groups. They emphasise the Curtis-Alvis duality map and Mackey's theorem and the results that can be deduced from it. They also discuss Deligne-Lusztig induction. This will be the first elementary treatment of this material in book form and will be welcomed by beginning graduate students in algebra.
Lie groups. --- Representations of groups. --- Group representation (Mathematics) --- Groups, Representation theory of --- Group theory --- Groups, Lie --- Lie algebras --- Symmetric spaces --- Topological groups
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Operator theory --- Algebra --- Algèbre --- Bose algebras. --- Representations of groups. --- Mathematical physics --- 51 --- Bose algebras --- Representations of groups --- Hilbert space --- Physical mathematics --- Physics --- Banach spaces --- Hyperspace --- Inner product spaces --- Group representation (Mathematics) --- Groups, Representation theory of --- Group theory --- Algebra, Bose --- Algebras, Bose --- Bose algebra --- Operator algebras --- Mathematics --- 51 Mathematics
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Group theory --- Finite groups --- Modules (Algebra) --- Representations of groups --- Group representation (Mathematics) --- Groups, Representation theory of --- Finite number systems --- Modular systems (Algebra) --- Algebra --- Rings (Algebra) --- Groups, Finite --- Groupes finis --- Représentations de groupes --- Modules (algèbre) --- Integral representations --- représentations intégrales --- Représentations de groupes. --- représentations intégrales.
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Group theory --- Group schemes (Mathematics) --- Linear algebraic groups --- Representations of groups --- Group representation (Mathematics) --- Groups, Representation theory of --- Algebraic groups, Linear --- Geometry, Algebraic --- Algebraic varieties --- Schemes, Group (Mathematics) --- Schemes (Algebraic geometry) --- Linear algebraic groups. --- Representations of groups. --- Groupes algébriques linéaires. --- Représentations de groupes.
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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.
Trees (Graph theory) --- Graph theory --- Automorphisms. --- Harmonic analysis. --- Representations of groups. --- Group representation (Mathematics) --- Groups, Representation theory of --- Group theory --- Analysis (Mathematics) --- Functions, Potential --- Potential functions --- Banach algebras --- Calculus --- Mathematical analysis --- Mathematics --- Bessel functions --- Fourier series --- Harmonic functions --- Time-series analysis --- Symmetry (Mathematics) --- Automorphisms --- Harmonic analysis --- Representations of groups --- Arbres (Théorie des graphes) --- Analyse harmonique --- Représentations de groupes
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