In the present book the reader will find a review of methods for
constructing a certain class of asymptotic solutions, which we call
self-stabilizing solutions. This class includes solitons, kinks,
traveling waves, etc. It can be said that either the solutions from this
class or their derivatives are localized in the neighborhood of a
certain curve or surface. For the present edition, the book published in
Moscow by the Nauka publishing house in 1987, was almost completely
revised, essentially up-dated, and shows our present understanding of
the problems considered. The new results, obtained by the authors after
the Russian edition was published, are referred to in footnotes. As
before, the book can be divided into two parts: the methods for
constructing asymptotic solutions ( Chapters I-V) and the application of
these methods to some concrete problems (Chapters VI-VII). In Appendix a
method for justification some asymptotic solutions is discussed briefly.
The final formulas for the asymptotic solutions are given in the form of
theorems. These theorems are unusual in form, since they present the
results of calculations. The authors hope that the book will be useful
to specialists both in differential equations and in the mathematical
modeling of physical and chemical processes. The authors express their
gratitude to Professor M. Hazewinkel for his attention to this work and
his support.