The Block Theory of Finite Group Algebras

A comprehensive treatment of block theory, emphasising cornerstones of the area which have not appeared in any book before.

Markus Linckelmann (Author)

9781108441803, Cambridge University Press

Paperback / softback, published 24 May 2018

520 pages, 12 exercises
22.8 x 15.3 x 3 cm, 0.78 kg

'This 2-volume book is a very welcome addition to the existing literature in modular representation theory. It contains a wealth of material much of which is here presented in textbook form for the ?rst time. It gives an excellent overview of the state of the art in this fascinating subject and also of the many challenging and fundamental open problems. It is well written and will certainly become a standard reference.' Burkhard K?lshammer, MathSciNet

This is a comprehensive introduction to the modular representation theory of finite groups, with an emphasis on block theory. The two volumes take into account classical results and concepts as well as some of the modern developments in the area. Volume 1 introduces the broader context, starting with general properties of finite group algebras over commutative rings, moving on to some basics in character theory and the structure theory of algebras over complete discrete valuation rings. In Volume 2, blocks of finite group algebras over complete p-local rings take centre stage, and many key results which have not appeared in a book before are treated in detail. In order to illustrate the wide range of techniques in block theory, the book concludes with chapters classifying the source algebras of blocks with cyclic and Klein four defect groups, and relating these classifications to the open conjectures that drive block theory.

Introduction
6. Blocks and source algebras
7. Modules over finite p-groups
8. Local structure
9. Isometries and bimodules
10. Structural results in block theory
11. Blocks with cyclic defect groups
12. Blocks with Klein four defect groups
Appendix
References
Index.

Subject Areas: Algebraic topology [PBPD], Number theory [PBH], Algebra [PBF]