The Classical Fields
Structural Features of the Real and Rational Numbers

The real, rational, complex and p-adic numbers are discussed in detail in this comprehensive work.

H. Salzmann (Author), T. Grundhöfer (Author), H. Hähl (Author), R. Löwen (Author)

9780521865166, Cambridge University Press

Hardback, published 23 August 2007

418 pages, 205 exercises
24.2 x 16.4 x 2.5 cm, 0.754 kg

'… certainly useful for readers with an interest in the interrelations of algebra and topology not based on abstract objects but on concrete ones, here reals and rationals.' European Mathematical Society Newsletter

The classical fields are the real, rational, complex and p-adic numbers. Each of these fields comprises several intimately interwoven algebraical and topological structures. This comprehensive volume analyzes the interaction and interdependencies of these different aspects. The real and rational numbers are examined additionally with respect to their orderings, and these fields are compared to their non-standard counterparts. Typical substructures and quotients, relevant automorphism groups and many counterexamples are described. Also discussed are completion procedures of chains and of ordered and topological groups, with applications to classical fields. The p-adic numbers are placed in the context of general topological fields: absolute values, valuations and the corresponding topologies are studied, and the classification of all locally compact fields and skew fields is presented. Exercises are provided with hints and solutions at the end of the book. An appendix reviews ordinals and cardinals, duality theory of locally compact Abelian groups and various constructions of fields.

Preface
1. Real numbers
2. Non-standard numbers
3. Rational numbers
4. Completion
5. The p-adic numbers
6. Appendix
Hints and solutions
Bibliography
Notation
Index.

Subject Areas: Topology [PBP], Number theory [PBH], Algebra [PBF]