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商品詳細
Cohomology of Quotients in Symplectic and Algebraic Geometry. (MN-31), Volume 31.
・ISBN 978-0-691-08370-4 paper US$ 110.00
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| 著者・編者 | Kirwan, Frances Clare, |
|---|---|
| シリーズ | Mathematical Notes |
| 出版社 | (Princeton University Press, US) |
| 出版年月 | 1984 |
| ページ数 | 216 pp. |
| 言語 | ENG |
| ニュース番号 | ＜M25-11194＞ |
解説
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.