This book is a study of how a particular vision of the unity of mathematics, often called geometric function theory, was created in the 19th century. The centra

First year, undergraduate, mathematics students in Japan have for many years had the opportunity of a unique experience---an introduction, at an elementary leve

Volume 2 offers a unique blend of classical results of Sophus Lie with new, modern developments and numerous applications which span a period of more than 100 y