Higher direct images of log canonical divisors and positivity theorems
Higher direct images of log canonical divisors and positivity theorems
复制标题
对数正则除数和正性定理的更高直接图像
DOI:
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
O. Fujino
中科院分区:
文献类型:
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作者:
O. Fujino
In this paper, we investigate higher direct images of log canonical divisors. After we reformulate Koll\'ar's torsion-free theorem, we treat the relationship between higher direct images of log canonical divisors and the canonical extensions of Hodge filtration of gradedly polarized variations of mixed Hodge structures. As a corollary, we obtain a logarithmic version of Fujita-Kawamata's semi-positivity theorem. By this semi-positivity theorem, we generalize Kawamata's positivity theorem and apply it to the study of a log canonical bundle formula. The final section is an appendix, which is a result of Morihiko Saito.
DOI:
10.1090/pspum/052.2
发表时间:
1991
期刊:
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影响因子:
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作者:
Eric Bedford;J. D'Angelo;R. Greene;S. Krantz
通讯作者:
Eric Bedford;J. D'Angelo;R. Greene;S. Krantz