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Semipositivity of generic ordinary fibration over a curve
Chen, Yifei; Gu, Yi
2018-10-01
Source PublicationSCIENCE CHINA-MATHEMATICS
ISSN1674-7283
Volume61Issue:10Pages:1749-1758
AbstractLet f : X. B be a generic ordinary proper fibration over a complete curve in positive characteristics, we prove that the dual of higher direct image sheaf R1f similar to O X is nef. As a corollary, we show that f similar to!S=B is nef, if f : S. B is a fibration from a surface to a curve with generic ordinary fibres.
Keywordsemipositivity fibrations direct image sheaf
DOI10.1007/s11425-017-9104-7
Language英语
Funding ProjectNational Natural Science Foundation of China[11231003] ; National Natural Science Foundation of China[11321101]
WOS Research AreaMathematics
WOS SubjectMathematics, Applied ; Mathematics
WOS IDWOS:000445236300003
PublisherSCIENCE PRESS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.amss.ac.cn/handle/2S8OKBNM/31325
Collection数学所
AffiliationChinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Chen, Yifei,Gu, Yi. Semipositivity of generic ordinary fibration over a curve[J]. SCIENCE CHINA-MATHEMATICS,2018,61(10):1749-1758.
APA Chen, Yifei,&Gu, Yi.(2018).Semipositivity of generic ordinary fibration over a curve.SCIENCE CHINA-MATHEMATICS,61(10),1749-1758.
MLA Chen, Yifei,et al."Semipositivity of generic ordinary fibration over a curve".SCIENCE CHINA-MATHEMATICS 61.10(2018):1749-1758.
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