Description:
This book covers approximate transformations groups, symmetries of integro-differential equations and renormgroup symmetries. It includes a concise and self-contained introduction to basic concepts and methods of Lie group analysis.
Review Quotes: From the reviews: "The book is dedicated to new trends in applied group analysis focused on the computation of approximate symmetries of differential equation systems containing a small parameter. ... Many worked out examples are offered illustrating the general theory. ... This is a short, self contained book providing a valuable reference for the application-oriented reader." (Fernando Haas, Mathematical Reviews, Issue 2010 f)