Raynaud-Tamagawa theta divisors and new-ordinariness of ramified coverings of curves
Raynaud-Tamagawa theta divisors and new-ordinariness of ramified coverings of curves
复制标题
雷诺-玉川θ因数和曲线分支覆盖的新寻常性
DOI:
10.1016/j.jalgebra.2021.07.032
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Yu Yang
中科院分区:
文献类型:
--
作者:
Jack Jefferies; Yusuke Nakajima;Ilya Smirnov,Kei-ichi Watanabe;Ken-ichi Yoshida;Yota Shamoto;Yu Yang
Abstract Let (X, D X) be a smooth pointed stable curve over an algebraically closed field k of characteristic p> 0. Suppose that (X, D X) is generic. We give a necessary and sufficient condition for new-ordinariness of prime-to-p cyclic tame coverings of (X, D X). This result generalizes a result of S. Nakajima concerning the ordinariness of prime-to-p cyclic étale coverings of generic curves to the case of tamely ramified coverings.
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DOI:
--
发表时间:
2019
期刊:
--
影响因子:
--
作者:
Yu Yang
通讯作者:
Yu Yang
影响因子:
0.7
作者:
Akio Tamagawa
通讯作者:
Akio Tamagawa
DOI:
--
发表时间:
1983
期刊:
影响因子:
--
作者:
S. Nakajima
通讯作者:
S. Nakajima
影响因子:
0.6
作者:
Doré Subrao
通讯作者:
Doré Subrao
影响因子:
1.8
作者:
I. Bouw
通讯作者:
I. Bouw