This lecture notes volume encompasses four indispensable mini courses delivered at Wuhan University with each course containing the material from five one-hour

Asymptotic differential algebra seeks to understand the solutions of differential equations and their asymptotics from an algebraic point of view. The different

The book gives the practical means of finding asymptotic solutions to differential equations, and relates WKB methods, integral solutions, Kruskal-Newton diagra

This book considers dynamic boundary value problems in domains with singularities of two types. The first type consists of "edges" of various dimensions on the

The unique feature of this book is that it considers the theory of partial differential equations in mathematical physics as the language of continuous processe