Singularities of Differentiable Maps

Singularities of Differentiable Maps

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The present. volume is the second volume of the book qSingularities of Differentiable Mapsq by V.1. Arnold, A. N. Varchenko and S. M. Gusein-Zade. The first volume, subtitled qClassification of critical points, caustics and wave frontsq, was published by Moscow, qNaukaq, in 1982. It will be referred to in this text simply as qVolume 1q. Whilst the first volume contained the zoology of differentiable maps, that is it was devoted to a description of what, where and how singularities could be encountered, this volume contains the elements of the anatomy and physiology of singularities of differentiable functions. This means that the questions considered in it are about the structure of singularities and how they function. Another distinctive feature of the present volume is that we take a hard look at questions for which it is important to work in the complex domain, where the first volume was devoted to themes for which, on the whole, it was not important which field (real or complex) we were considering. Such topics as, for example, decomposition of singularities, the connection between singularities and Lie algebras and the asymptotic behaviour of different integrals depending on parameters become clearer in the complex domain. The book consists of three parts. In the first part we consider the topological structure of isolated critical points of holomorphic functions. We describe the fundamental topological characteristics of such critical points: vanishing cycles, distinguished bases, intersection matrices, monodromy groups, the variation operator and their interconnections and method of calculation.The Newton diagram of a subset is the union of all the compact faces of its Newton polyhedron. We consider the power series f= Xa, X* with real or complex coefficients, where k=(k1, ..., k, ), x*=x}a#39;a#39;... x;aquot;. The support of the series is the set of anbsp;...

Title:Singularities of Differentiable Maps
Author:V.I. Arnold, A.N. Varchenko, S.M. Gusein-Zade
Publisher:Springer Science & Business Media - 2012-12-06


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