The second part is devoted to Clifford theory for graded algebras and its application to the corresponding theory for group algebras. The volume ends with a detailed investigation of the Schur index for ordinary representations. A prominant role is played in the discussion by Brauer groups together with cyclotomic algebras and cyclic algebras.
925 pages; ISBN 9780080872919
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Title: Group Representations
Author: G. Karpilovsky
IB Mathematics Higher Level 2012 US$ 67.20 832 pages
IB Mathematical Studies Standard 2012 US$ 53.60 624 pages