Equality of Two Non-Logarithmic Ramification Filtrations of Abelianized Galois Group in Positive Characteristic

Equality of Two Non-Logarithmic Ramification Filtrations of Abelianized Galois Group in Positive Characteristic
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正特性阿贝尔化伽罗瓦群的两个非对数分枝过滤的等式

DOI:
10.4171/dm/582
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发表时间:
2016
影响因子:
0.9
通讯作者:
Yuri Yatagawa
Yuri Yatagawa
中科院分区:
数学3区
文献类型:
--
作者:
Yuri Yatagawa

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证明了完全离散赋值域的绝对伽罗华群具有正特征时,Matsuda和Abbes-Saito定义的两个非对数分支滤子的等价性。我们还利用Witt向量束计算了正特征理想域上光滑分离格式的基本群特征的特征形式和精化的Swan导体。
We prove the equality of two non-logarithmic ramification filtrations defined by Matsuda and Abbes-Saito for the abelianized absolute Galois group of a complete discrete valuation field in positive characteristic. We also compute the refined Swan conductor and the characteristic form of a character of the fundamental group of a smooth separated scheme over a perfect field of positive characteristic by using sheaves of Witt vectors.
分析微区域 1-adique en caracteristique p>0 : Le cas dun 特征
DOI: --
发表时间: 2009
期刊: Publication of the Research Institute for Mathematical Sciences 45-1
影响因子: --
作者:
Ahmed Abbes;Takeshi Saito
通讯作者: Takeshi Saito