Local cohomological dimension of algebraic varieties
Local cohomological dimension of algebraic varieties
复制标题
代数簇的局部上同调维数
DOI:
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发表时间:
1973
期刊:
影响因子:
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通讯作者:
A. Ogus
中科院分区:
文献类型:
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作者:
A. Ogus
If X is a smooth scheme of characteristic zero and Yc X is a closed subset, we find topological conditions on the singularities of Y which determine the best possible vanishing theorem for the sheaves of local cohomology Hf(F) for all i > r and all quasicoherent F. Applications include computation of the cohomological dimension of Pn - Y for arbitrary closed subsets Y and extensions of theorems of Lefschetz and Barth to the case of singular varieties.