This invaluable book examines qualitative and quantitative methods for nonlinear differential equations, as well as integrability and nonintegrability theory. S

This book is devoted to the relation between two different concepts of integrability: the complete integrability of complex analytical Hamiltonian systems and t

This is the first book to systematically state the fundamental theory of integrability and its development of ordinary differential equations with emphasis on t

Symmetries and singularity structures play important roles in the study of nonlinear dynamical systems. It was Sophus Lie who originally stressed the importance

A collection of five surveys on dynamical systems, indispensable for graduate students and researchers in mathematics and theoretical physics. Written in the mo