Lefschetz for local Picard groups
Lefschetz for local Picard groups
复制标题
Lefschetz 代表当地皮卡德团体
DOI:
10.24033/asens.2228
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发表时间:
2013
期刊:
影响因子:
--
通讯作者:
A. Jong
中科院分区:
文献类型:
--
作者:
B. Bhatt;A. Jong
We prove a strengthening of the Grothendieck-Lefschetz hyperplane theorem for local Picard groups conjectured by Koll\'ar. Our approach, which relies on acyclicity results for absolute integral closures, also leads to a restriction theorem for higher rank bundles on projective varieties in positive characteristic.