Yitzhak Frishman is a Professor Emeritus at the Weizmann Institute, Israel, where he has served as Head of the Einstein Centre for Theoretical Physics and Head of the Department of Particle Physics. Jacob Sonnenschein is a Professor of Physics at Tel Aviv University, Israel, where he was Head of the Particle Physics Department from 2003 to 2007.
""... highly recommendable... This book fills a gap in the literature on non-pertubative aspects of field theories by bringing together many topics which are usually covered only separately in different books. Thus, this book is definitely a must-read for people active in this field."" Axel Maas, Mathematical Reviews