Franz RotheFranz Rothe graduated from high school in Karlsruhe and has studied mathematics, physics and music there. He has received his doctoral degree in mathematics from the University of Tübingen, Germany. He was professor at the University of North Carolin at Charlotte, and has published about 40 articles and a lecture note in mathematics, and more recently further books on number theory, modern algebra, graph theory and geometry. Because of health reasons, Dr. Rothe is retired since several years, and is now emeritus professor. Read More Read Less