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Theorems of Barth-Lefschetz type for complex subspaces of homogeneous complex manifolds.

Abstract：

:Barth, Larsen, and others showed that complex submanifolds of complex projective space, CP(N), of small codimension strongly resemble CP(N) both homotopically and cohomologically. These results are generalized to yield analogous results for complex subspaces of arbitrary homogeneous complex manifolds. One very special corollary that gives the flavor of the results is:Corollary. Let A and B be complex submanifolds with B a connected submanifold of X, a simple Abelian variety, i.e., X has no proper sub-Abelian varieties. Then: [Formula: see text], where basepoints are suppressed for simplicity, and [Formula: see text]. Further, given any coherent sheaf on B, which may be assumed to be a connected local complete intersection, then: [Formula: see text] and given a coherent sheaf on X, then: [Formula: see text].

journal_name

Proc Natl Acad Sci U S A

journal_title

Proceedings of the National Academy of Sciences of the United States of America

authors

Sommese AJ

doi

10.1073/pnas.74.4.1332

keywords:

subject

Has Abstract

pub_date

1977-04-01 00:00:00

pages

1332-3

issue

4

eissn

0027-8424

issn

1091-6490

journal_volume

74

pub_type

杂志文章

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