After an introductory chapter on the fundamentals of topology and group theory, this book presents a concise treatment of several more advanced subjects. Topics include semitopological groups, locally compact groups, Harr measure, and duality theory and some of its applications. The volume concludes with a chapter that introduces Banach algebras. AUTHOR: Born in India, Taqdir Husain received his Ph.D. from Syracuse University in 1960 and emigrated to Canada the following year. He joined the faculty of McMaster University in Hamilton, Ontario, in 1964 and became a Professor of Mathematics there in 1967. Husain served as MacMaster's Chairman of the Department of Mathematics for many years, and upon his 1994 retirement was named Emeritus Professor of Mathematics.