books.google.com.sg - This is the first of two volumes providing an introduction to modern developments in the representation theory of finite groups and associative algebras, which have transformed the subject into a study of categories of modules. Thus, Dr. Benson's unique perspective in this book incorporates homological...http://books.google.com.sg/books/about/Representations_and_Cohomology_Volume_1.html?id=cezF63340GAC&utm_source=gb-gplus-shareRepresentations and Cohomology: Volume 1, Basic Representation Theory of Finite Groups and Associative Algebras
