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Automorphisms of P 8 singularities and the complex crystallographic groups

  • Victor Goryunov
  • Dmitry Kerner
Article
  • 31 Downloads

Abstract

The paper completes the study of symmetries of parabolic function singularities with relation to complex crystallographic groups that was started by the first co-author and his collaborator. We classify smoothable automorphisms of P 8 singularities which split the kernel of the intersection form on the second homology. For such automorphisms, the monodromy groups acting on the duals to the eigenspaces with degenerate intersection form are then identified as some of complex affine reflection groups tabled by V.L. Popov.

Keywords

Intersection Form STEKLOV Institute Intersection Number Kernel Character Dynkin Diagram 
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Copyright information

© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  1. 1.Department of Mathematical SciencesUniversity of LiverpoolLiverpoolUk
  2. 2.Department of MathematicsBen Gurion University of the NegevBe’er ShevaIsrael

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