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检索条件"主题词=Fibrations"
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fibrations and stability for compact group actions on manifolds with local bounded Ricci covering geometry
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Frontiers of Mathematics in China 2020年 第1期15卷 69-89页
作者: Hongzhi HUANG School of Mathematical Sciences Capital Normal UniversityBeijing 100048China
In the study of the collapsed manifolds with bounded sectional curvature,the following two results provide basic tools:a(singular)fibration theorem by ***[*** Gcom.,1987.25(1):139156]and ***,***,and ***[***.,1992.5(2)... 详细信息
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Semipositivity of generic ordinary fibration over a curve
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Science China Mathematics 2018年 第10期61卷 1749-1758页
作者: Yifei Chen Yi Gu Academy of Mathematics and Systems Science Chinese Academy of Sciences
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 R^1 f_*O_X is nef. As a corollary, we show that f_*ω_(S/B) ... 详细信息
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