Biset Functors For Finite Groups

Author : serge Bouc
Publisher : Springer
ISBN 13 : 3642112978
Total Pages : 303 pages
Book Rating : 4.73/5 ( download)

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Download or read book Biset Functors for Finite Groups written by serge Bouc and published by Springer. This book was released on 2010-03-10 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume exposes the theory of biset functors for finite groups, which yields a unified framework for operations of induction, restriction, inflation, deflation and transport by isomorphism. The first part recalls the basics on biset categories and biset functors. The second part is concerned with the Burnside functor and the functor of complex characters, together with semisimplicity issues and an overview of Green biset functors. The last part is devoted to biset functors defined over p-groups for a fixed prime number p. This includes the structure of the functor of rational representations and rational p-biset functors. The last two chapters expose three applications of biset functors to long-standing open problems, in particular the structure of the Dade group of an arbitrary finite p-group.This book is intended both to students and researchers, as it gives a didactic exposition of the basics and a rewriting of advanced results in the area, with some new ideas and proofs.

Author : Rob Carman
Publisher :
ISBN 13 : 9780355333367
Total Pages : 89 pages
Book Rating : 4.68/5 ( download)

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Download or read book Unit Groups of Representation Rings and Their Ghost Rings as Biset Functors written by Rob Carman and published by . This book was released on 2017 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: The theory of biset functors developed by Serge Bouc has been instrumental in the study of the unit group of the Burnside ring of a finite group, in particular for the case of p-groups. The unit group of the ghost ring of the Burnside ring defines a biset functor, and becomes a useful tool in studying the Burnside ring unit group functor itself. We are interested in studying the unit group of another representation ring: the trivial source ring of a finite group. Here we show how the unit group of the trivial source ring and its associated ghost ring define biset functors. Since the trivial source ring is often seen as connecting the Burnside ring to the character ring and Brauer character ring of a finite group, we study all these representation rings at the same time. We point out that restricting all of these representation rings' unit groups to their torsion subgroups also give biset functors, which can be completely determined in the case of the character ring and Brauer character ring.

Author : Scott Balchin
Publisher : Cambridge University Press
ISBN 13 : 1108931944
Total Pages : 357 pages
Book Rating : 4.46/5 ( download)

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Download or read book Equivariant Topology and Derived Algebra written by Scott Balchin and published by Cambridge University Press. This book was released on 2021-11-18 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: A collection of research papers, both new and expository, based on the interests of Professor J. P. C. Greenlees.

Author : Stefan Schwede
Publisher : Cambridge University Press
ISBN 13 : 110842581X
Total Pages : 847 pages
Book Rating : 4.10/5 ( download)

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Download or read book Global Homotopy Theory written by Stefan Schwede and published by Cambridge University Press. This book was released on 2018-09-06 with total page 847 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive, self-contained approach to global equivariant homotopy theory, with many detailed examples and sample calculations.

Author : Petter Andreas Bergh
Publisher : Springer Nature
ISBN 13 : 3031577892
Total Pages : 275 pages
Book Rating : 4.95/5 ( download)

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Download or read book Triangulated Categories in Representation Theory and Beyond written by Petter Andreas Bergh and published by Springer Nature. This book was released on with total page 275 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Robert Adler
Publisher : Springer
ISBN 13 : 3642195806
Total Pages : 135 pages
Book Rating : 4.08/5 ( download)

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Download or read book Topological Complexity of Smooth Random Functions written by Robert Adler and published by Springer. This book was released on 2011-05-16 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt: These notes, based on lectures delivered in Saint Flour, provide an easy introduction to the authors’ 2007 Springer monograph “Random Fields and Geometry.” While not as exhaustive as the full monograph, they are also less exhausting, while still covering the basic material, typically at a more intuitive and less technical level. They also cover some more recent material relating to random algebraic topology and statistical applications. The notes include an introduction to the general theory of Gaussian random fields, treating classical topics such as continuity and boundedness. This is followed by a quick review of geometry, both integral and Riemannian, with an emphasis on tube formulae, to provide the reader with the material needed to understand and use the Gaussian kinematic formula, the main result of the notes. This is followed by chapters on topological inference and random algebraic topology, both of which provide applications of the main results.

Author : Jan Lang
Publisher : Springer
ISBN 13 : 3642184294
Total Pages : 232 pages
Book Rating : 4.91/5 ( download)

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Download or read book Eigenvalues, Embeddings and Generalised Trigonometric Functions written by Jan Lang and published by Springer. This book was released on 2011-03-17 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main theme of the book is the study, from the standpoint of s-numbers, of integral operators of Hardy type and related Sobolev embeddings. In the theory of s-numbers the idea is to attach to every bounded linear map between Banach spaces a monotone decreasing sequence of non-negative numbers with a view to the classification of operators according to the way in which these numbers approach a limit: approximation numbers provide an especially important example of such numbers. The asymptotic behavior of the s-numbers of Hardy operators acting between Lebesgue spaces is determined here in a wide variety of cases. The proof methods involve the geometry of Banach spaces and generalized trigonometric functions; there are connections with the theory of the p-Laplacian.

Author : Jan Šťovíček
Publisher : American Mathematical Soc.
ISBN 13 : 147045131X
Total Pages : 298 pages
Book Rating : 4.18/5 ( download)

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Download or read book Representation Theory and Beyond written by Jan Šťovíček and published by American Mathematical Soc.. This book was released on 2020-11-13 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the proceedings of the Workshop and 18th International Conference on Representations of Algebras (ICRA 2018) held from August 8–17, 2018, in Prague, Czech Republic. It presents several themes of contemporary representation theory together with some new tools, such as stable ∞ ∞-categories, stable derivators, and contramodules. In the first part, expanded lecture notes of four courses delivered at the workshop are presented, covering the representation theory of finite sets with correspondences, geometric theory of quiver Grassmannians, recent applications of contramodules to tilting theory, as well as symmetries in the representation theory over an abstract stable homotopy theory. The second part consists of six more-advanced papers based on plenary talks of the conference, presenting selected topics from contemporary representation theory: recollements and purity, maximal green sequences, cohomological Hall algebras, Hochschild cohomology of associative algebras, cohomology of local selfinjective algebras, and the higher Auslander–Reiten theory studied via homotopy theory.

Author : Nadia Mazza
Publisher : Springer
ISBN 13 : 3030181561
Total Pages : 120 pages
Book Rating : 4.67/5 ( download)

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Download or read book Endotrivial Modules written by Nadia Mazza and published by Springer. This book was released on 2019-05-25 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an in-depth report on the endotrivial modules, an important class of modular representations for finite groups. Following the historical development of the theory, the book starts with a review of the necessary definitions and some key examples. The main results obtained using traditional techniques are then presented, followed by more recent results such as the work of Grodal inspired by algebraic topology. In the last part of the book original methods are applied to obtain the group of endotrivial modules for certain very important groups. An accessible reference collecting half a century of research on endotrivial modules, this book will be of interest to researchers in algebra.

Author : Serge Bouc
Publisher : American Mathematical Soc.
ISBN 13 : 0821819518
Total Pages : 89 pages
Book Rating : 4.17/5 ( download)

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Download or read book Non-Additive Exact Functors and Tensor Induction for Mackey Functors written by Serge Bouc and published by American Mathematical Soc.. This book was released on 2000 with total page 89 pages. Available in PDF, EPUB and Kindle. Book excerpt: First the author introduces a generalization of the notion of (right)-exact functor between abelian categories to the case of non-additive functors. The main result of this section is an extension theorem: any functor defined on a suitable subcategory can be extended uniquely to a right exact functor defined on the whole category. Next those results are used to define various functors of generalized tensor induction, associated to finite bisets, between categories attached to finite groups. This includes a definition of tensor induction for Mackey functors, for cohomological Mackey functors, for p-permutation modules and algebras. This also gives a single formalism of bisets for restriction, inflation, and ordinary tensor induction for modules.