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Ramification around Landau varieties

  • Frédéric Pham
Part of the Universitext book series (UTX)

Abstract

The fundamental group of a topological space. Simple pinching, description of the vanishing chains, characterization of the vanishing classes, localization, Picard’s formula, Lefschetz’ formula, ramification type, invariant classes, proof of the Picard-Lefschetz formula. Study of certain singular points of Landau varieties, application of the Picard-Lefschetz formula.

Keywords

Singular Point Fundamental Group Homology Group Homotopy Class Intersection Index 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag London Limited 2011

Authors and Affiliations

  • Frédéric Pham
    • 1
  1. 1.Laboratoire J.-A. DieudonnéUniversité de Nice Sophia AntipolisNice cedex 02France

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