"These lectures grew out of a Harvard physics course first taught by John Van Vleck (1977 Nobel Prize) then continued by Sheldon Glashow (1979 Nobel Prize) and Sidney Coleman, and now by Howard Georgi, the author of this book. Students will find that the book enables them to apply the theory of Lie Algebras and their representations to a wide variety of problems in particle physics and quantum mechanics.

This is a key technique for researchers engaged in finding the unified theories that will unite the four forces of nature: electromagnetic, gravitational, weak, and strong nuclear forces - that is, the so-called "theories of everything.""--BOOK JACKET.