By V. I. Arnold, V. V. Goryunov, O. V. Lyashko, V. A. Vasil’ev (auth.)

From the reports of the 1st printing of this ebook, released as quantity 6 of the Encyclopaedia of Mathematical Sciences: "... My common influence is of a very great publication, with a well-balanced bibliography, recommended!"

Medelingen van Het Wiskundig Genootschap, 1995

"... The authors supply the following an up to the moment consultant to the subject and its major purposes, together with a couple of new effects. it's very handy for the reader, a gently ready and huge bibliography ... makes it effortless to discover the required info whilst wanted. The books (EMS 6 and EMS 39) describe loads of attention-grabbing subject matters. ... either volumes are a really necessary addition to the library of any mathematician or physicist attracted to sleek mathematical analysis."

ecu Mathematical Society publication, 1994

"...The authors are well-known specialists of their fields and so are perfect offerings to write down this kind of survey. ...The textual content of the booklet is liberally sprinkled with illustrative examples and so the fashion isn't heavy going or turgid... The bibliography is superb and intensely huge ..."

IMS Bulletin, 1995