Representation Theory A Homological Algebra Point of View

“The focus of this text is the representation theory of associative algebras and the modular representation theory of finite groups, with an emphasis on the interplay between these two fields. … the text at hand is aimed at a beginning graduate student without prior exposure to homological algebra. … Overall, this book is a great repository of theory, developed almost from scratch, with detailed proofs.” (Alex S. Dugas, Mathematical Reviews, May, 2016)

“This book is intended as a text for first year master students who want to specialize on representation theory, more precisely: representations of finite-dimensional algebras and modular group representations, with special emphasis on homological methods.” (Wolfgang Rump, zbMATH 1306.20001, 2015)