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On Swan conductors for Brauer groups
of curves over local fields

Author: Takao Yamazaki
Journal: Proc. Amer. Math. Soc. 127 (1999), 1269-1274
MSC (1991): Primary 11G20, 11S15
Published electronically: January 27, 1999
MathSciNet review: 1487348
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Abstract | References | Similar Articles | Additional Information

Abstract: For an element $w$ of the Brauer group of a curve over a local field, we define the ``Swan conductor'' $\operatorname{sw}(w)$ of $w$, which measures the wildness of the ramification of $w$. We give a relation between $\operatorname{sw}(w)$ and Swan conductors for Brauer groups of henselian discrete valuation fields defined by Kato.

References [Enhancements On Off] (What's this?)

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Additional Information

Takao Yamazaki

Received by editor(s): May 5, 1997
Received by editor(s) in revised form: August 8, 1997
Published electronically: January 27, 1999
Communicated by: David E. Rohrlich
Article copyright: © Copyright 1999 American Mathematical Society