semipositivityofgenericordinaryfibrationoveracurve

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	semipositivityofgenericordinaryfibrationoveracurve
	Chen Yifei; Gu Yi
	2018
发表期刊	sciencechinamathematics
ISSN	1674-7283
卷号	61 期号:10 页码:1749
摘要	Let 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.
语种	英语
资助项目	[National Natural Science Foundation of China]
文献类型	期刊论文
条目标识符	http://ir.amss.ac.cn/handle/2S8OKBNM/44114
专题	中国科学院数学与系统科学研究院
作者单位	中国科学院数学与系统科学研究院
推荐引用方式 GB/T 7714	Chen Yifei,Gu Yi. semipositivityofgenericordinaryfibrationoveracurve[J]. sciencechinamathematics,2018,61(10):1749.
APA	Chen Yifei,&Gu Yi.(2018).semipositivityofgenericordinaryfibrationoveracurve.sciencechinamathematics,61(10),1749.
MLA	Chen Yifei,et al."semipositivityofgenericordinaryfibrationoveracurve".sciencechinamathematics 61.10(2018):1749.