Cohomology of Quotients in Symplectic and Algebraic Geometry. (MN-31), Volume 31

Released on by Frances Clare Kirwan
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  • Cohomology of Quotients in Symplectic and Algebraic Geometry. (MN-31), Volume 31 Book Detail

  • Author : Frances Clare Kirwan
  • Release Date : 2020-06-30
  • Publisher : Princeton University Press
  • Genre : Mathematics
  • Pages : 216
  • ISBN 13 : 0691214565
  • File Size : 83,83 MB
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Cohomology of Quotients in Symplectic and Algebraic Geometry. (MN-31), Volume 31 by Frances Clare Kirwan PDF Summary

Book Description: These notes describe a general procedure for calculating the Betti numbers of the projective quotient varieties that geometric invariant theory associates to reductive group actions on nonsingular complex projective varieties. These quotient varieties are interesting in particular because of their relevance to moduli problems in algebraic geometry. The author describes two different approaches to the problem. One is purely algebraic, while the other uses the methods of symplectic geometry and Morse theory, and involves extending classical Morse theory to certain degenerate functions.

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