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Ramification groups
of coverings and valuations
Takeshi Saito |
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Vol. 1 (2019), No. 3, 373–426
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Abstract |
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We give a purely scheme theoretic construction of the filtration by ramification groups of the Galois group of a covering. The valuation need not be discrete but the normalizations are required to be locally of complete intersection. A correction was submitted on 12 Jan 2022 and posted online on 17 Jan 2022. |
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Dedicated to the memory of Michel Raynaud |
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Keywords
ramification groups, valuation rings
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Mathematical Subject Classification 2010
Primary: 14B25
Secondary: 11S15
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Supplementary material |
Milestones
Received: 8 January 2018
Revised: 8 May 2018
Accepted: 23 May 2018
Published: 8 August 2018
Correction posted: 17 Jan 2022
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Authors |
| Takeshi Saito | |
| Department of Mathematical
Sciences University of Tokyo Japan |
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