Representation theory is an important part of modern mathematics, not only as a subject in its own right but also as a tool for many applications. It provides a

This book is intended to present group representation theory at a level accessible to mature undergraduate students and beginning graduate students. This is ach

Very roughly speaking, representation theory studies symmetry in linear spaces. It is a beautiful mathematical subject which has many applications, ranging from

``We explore widely in the valley of ordinary representations, and we take the reader over the mountain pass leading to the valley of modular representations, t

This book provides an accessible introduction to the state of the art of representation theory of finite groups. Starting from a basic level that is summarized