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arXiv · 1801.02766

Ramification groups of coverings and valuations

Takeshi Saito
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Abstract

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.

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Takeshi Saito. 2018-01-09. Ramification groups of coverings and valuations. https://doi.org/10.2140/tunis.2019.1.373

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