A note on fierce ramification

We show that bounding ramification at infinity bounds fierce ramification. This answers positively a question of Deligne posed to the first named author.

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Bibliographic Details
Published in:Journal of algebra 2019-06, Vol.528, p.250-259
Main Authors: Esnault, Hélène, Kindler, Lars, Srinivas, Vasudevan
Format: Article
Language:English
Subjects:
Fierce ramification
Swan conductor
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Description
Summary:We show that bounding ramification at infinity bounds fierce ramification. This answers positively a question of Deligne posed to the first named author.
ISSN:0021-8693
1090-266X
DOI:10.1016/j.jalgebra.2019.03.020