Pure Maths Colloquium: Ramification filtration of the Galois group of a local field
6 November 2000 16:00 in CM221
The topological group structure of the absolute Galois group of a local 1-dimensional field is relatively simple and almost does not depend on this field; but it has an additional structure given by its decreasing filtration by ramification subgroups. The aim of the talk is to present a recent progress in the study of this filtration.
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