By Jürgen Neukirch, Alexander Schmidt
This moment version is a corrected and prolonged model of the 1st. it's a textbook for college students, in addition to a reference ebook for the operating mathematician, on cohomological themes in quantity concept. In all it's a almost entire therapy of an unlimited array of vital themes in algebraic quantity idea. 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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