By Jürgen Neukirch, Alexander Schmidt
This moment version is a corrected and prolonged model of the 1st. it's a textbook for college kids, in addition to a reference e-book for the operating mathematician, on cohomological subject matters in quantity idea. In all it's a nearly entire remedy of an unlimited array of important themes in algebraic quantity concept. New fabric is brought right here on duality theorems for unramified and tamely ramified extensions in addition to a cautious research of 2-extensions of actual quantity fields.
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