Free Delivery Over $100
|
|
|||
|
||||
OverviewDeligne-Lusztig theory aims to study representations of finite reductive groups by means of geometric methods, and particularly l-adic cohomology. Many excellent texts present, with different goals and perspectives, this theory in the general setting. This book focuses on the smallest non-trivial example, namely the group SL2(Fq), which not only provides the simplicity required for a complete description of the theory, but also the richness needed for illustrating the most delicate aspects. The development of Deligne-Lusztig theory was inspired by Drinfeld's example in 1974, and Representations of SL2(Fq) is based upon this example, and extends it to modular representation theory. To this end, the author makes use of fundamental results of l-adic cohomology. In order to efficiently use this machinery, a precise study of the geometric properties of the action of SL2(Fq) on the Drinfeld curve is conducted, with particular attention to the construction of quotients by various finite groups. At the end of the text, a succinct overview (without proof) of Deligne-Lusztig theory is given, as well as links to examples demonstrated in the text. With the provision of both a gentle introduction and several recent materials (for instance, Rouquier's theorem on derived equivalences of geometric nature), this book will be of use to graduate and postgraduate students, as well as researchers and lecturers with an interest in Deligne-Lusztig theory. Full Product DetailsAuthor: Cédric BonnaféPublisher: Springer London Ltd Imprint: Springer London Ltd Edition: 2011 ed. Volume: 13 Dimensions: Width: 15.50cm , Height: 1.10cm , Length: 23.50cm Weight: 0.454kg ISBN: 9781447125990ISBN 10: 1447125991 Pages: 186 Publication Date: 01 December 2012 Audience: Professional and scholarly , Professional & Vocational Format: Paperback Publisher's Status: Active Availability: Manufactured on demand  We will order this item for you from a manufactured on demand supplier. Table of ContentsPart I Preliminaries.- Structure of SL2(Fq).- The Geometry of the Drinfeld Curve.- Part II Ordinary Characters.- Harish-Chandra Induction.- Deligne-Lusztig Induction.- The Character Table.- Part III Modular Representations.- More about Characters of G and of its Sylow Subgroups.- Unequal Characteristic: Generalities.- Unequal Characteristic: Equivalences of Categories.- Unequal Characteristic: Simple Modules, Decomposition Matrices.- Equal Characteristic.- Part IV Complements.- Special Cases.- Deligne-Lusztig Theory: an Overview.- Part V Appendices.- A l-Adic Cohomology.- B Block Theory.- C Review of Reflection Groups.ReviewsAuthor InformationTab Content 6Author Website:Countries AvailableAll regions |
||||
