Local fields
著者
書誌事項
Local fields
（Graduate texts in mathematics, 67）
Springer-Verlag, c1979
- : us
- : gw
- タイトル別名
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Corps locaux
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注記
Translation of Corps locaux.
Bibliography: p. 232-237
"Supplementary bibliography for the English edition": p. 235-237
Includes index
内容説明・目次
- 巻冊次
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: us ISBN 9780387904245
内容説明
The goal of this book is to present local class field theory from the cohomo logical point of view, following the method inaugurated by Hochschild and developed by Artin-Tate. This theory is about extensions-primarily abelian-of "local" (i.e., complete for a discrete valuation) fields with finite residue field. For example, such fields are obtained by completing an algebraic number field; that is one of the aspects of "localisation". The chapters are grouped in "parts". There are three preliminary parts: the first two on the general theory of local fields, the third on group coho mology. Local class field theory, strictly speaking, does not appear until the fourth part. Here is a more precise outline of the contents of these four parts: The first contains basic definitions and results on discrete valuation rings, Dedekind domains (which are their "globalisation") and the completion process. The prerequisite for this part is a knowledge of elementary notions of algebra and topology, which may be found for instance in Bourbaki. The second part is concerned with ramification phenomena (different, discriminant, ramification groups, Artin representation). Just as in the first part, no assumptions are made here about the residue fields. It is in this setting that the "norm" map is studied; I have expressed the results in terms of "additive polynomials" and of "multiplicative polynomials", since using the language of algebraic geometry would have led me too far astray.
目次
One Local Fields (Basic Facts).- I Discrete Valuation Rings and Dedekind Domains.- II Completion.- Two Ramification.- III Discriminant and Different.- IV Ramification Groups.- V The Norm.- VI Artin Representation.- Three Group Cohomology.- VII Basic Facts.- VIII Cohomology of Finite Groups.- IX Theorems of Tate and Nakayama.- X Galois Cohomology.- XI Class Formations.- Four Local Class Field Theory.- XII Brauer Group of a Local Field.- XIII Local Class Field Theory.- XIV Local Symbols and Existence Theorem.- XV Ramification.- Supplementary Bibliography for the English Edition.
- 巻冊次
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: gw ISBN 9783540904243
内容説明
This text on local fields covers such topics as ramification theory, group cohomology, local class field theory and basic results on discrete valuation rings.
目次
- Basic results on discrete valuations rings, Dedekind domains and completions
- ramification theory - discriminant, different, ramification subgroups, Hasse-Arf theorem, Artin representations
- group cohomology, with emphasis on arithmetical applications - theorems of Tate and Nakayama, Galois cohomology, class formations
- local class field theory, presented from the cohomological point of view.
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