Local Fields This book provides a fairly elementary and self-contained introduction to local fields. J. W. S. Cassels (Author) 9780521315258, Cambridge University Press Paperback / softback, published 21 August 1986 376 pages22.8 x 15.1 x 2.4 cm, 0.565 kg The p-adic numbers, the earliest of local fields, were introduced by Hensel some 70 years ago as a natural tool in algebra number theory. Today the use of this and other local fields pervades much of mathematics, yet these simple and natural concepts, which often provide remarkably easy solutions to complex problems, are not as familiar as they should be. This book, based on postgraduate lectures at Cambridge, is meant to rectify this situation by providing a fairly elementary and self-contained introduction to local fields. After a general introduction, attention centres on the p-adic numbers and their use in number theory. There follow chapters on algebraic number theory, diophantine equations and on the analysis of a p-adic variable. This book will appeal to undergraduates, and even amateurs, interested in number theory, as well as to graduate students. Preface Leitfaden Notational conventions 1. Introduction 2. General properties 3. Archimedean valuations 4. Non archimedean valuations 5. Embedding theorem 6. Transcendental extensions 7. Algebraic extensions 8. p-adic fields 9. Algebraic extensions 10. Algebraic number fields 11. Diophantine equations 12. Advanced analysis 13. A theorem of Borel and work Appendices References Index. Subject Areas: Algebra [PBF]
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