In this innovative work, 43 distinguished contributors present the latest developments together with surveys of the field. Coverage encompasses several closely related disciplines and most of the results shown in this volume are unavailable in any other source. Among the important topics addressed are applications to the theory of ordinary differential equations of generalized order, degree theoretic methods in optimal control, numerical treatment of a nonlinear problem arising in heat transfer, and applications of fixed point theorems to problems in optimization and best approximation. Encouraging interdisciplinary research to stimulate further advances, Nonlinear Analysis and Applications serves as the vital reference for mathematicians, researchers, and graduate students engaged in applied mathematics, engineering, physics, industrial science, economics, optimization, probability, medicinal and operational research, and differential equations. Additionally, it is eminently suitable for use in professional seminars.