Lectures On Formally Real Fields (Lecture Notes In Mathematics) (Lecture Notes in Mathematics (1093), Band 1093) Lecture notes in mathematics ; 1093

Prestel, A.:

ISBN 10: 3540138854 / ISBN 13: 9783540138853

Editore: Springer 03.12.1984., 1984

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144 Seiten 9783540138853 Wir verkaufen nur, was wir auch selbst lesen würden. Sprache: Deutsch Gewicht in Gramm: 284 15,6 x 0,8 x 23,4 cm, Taschenbuch.

Codice articolo 39496

Dati bibliografici

• Titolo: Lectures On Formally Real Fields (Lecture Notes In Mathematics) (Lecture Notes in Mathematics (1093), Band 1093) Lecture notes in mathematics ; 1093
• Editore: Springer 03.12.1984.
• Data di pubblicazione: 1984
• Lingua: Tedesco
• ISBN 10: 3540138854
• ISBN 13: 9783540138853
• Rilegatura: Brossura
• Edizione: Auflage: 1984.
• Condizione: Sehr gut
• Peso: 284 grammi
• Cataloghi dei venditori:
  • Geisteswissenschaften

Descrizione articolo

Riassunto

Absolute values and their completions - like the p-adic number fields- play an important role in number theory. Krull's generalization of absolute values to valuations made applications in other branches of mathematics, such as algebraic geometry, possible. In valuation theory, the notion of a completion has to be replaced by that of the so-called Henselization.

In this book, the theory of valuations as well as of Henselizations is developed. The presentation is based on the knowledge aquired in a standard graduate course in algebra. The last chapter presents three applications of the general theory -as to Artin's Conjecture on the p-adic number fields- that could not be obtained by the use of absolute values only.

Contenuti

Orderings and semiorderings of fields.- Quadratic forms over formally real fields.- Real algebraic closures.- Some notions from model theory.- The transfer-principle for real closed fields.- The space of orderings and semiorderings.- Real places.- Real henselian fields.- SAP-fields.- Quadratic forms over formally real fields.