Francis Borceux, George Janelidze, G. Janelidze

Galois Theories

• Gebundenes Buch

Produktbeschreibung

Starting from the classical finite-dimensional Galois theory of fields, this book develops Galois theory in a much more general context, presenting work by Grothendieck in terms of separable algebras and then proceeding to the infinite-dimensional case, which requires considering topological Galois groups. In the core of the book, the authors first formalise the categorical context in which a general Galois theorem holds, and then give applications to Galois theory for commutative rings, central extensions of groups, the topological theory of covering maps and a Galois theorem for toposes. The book is designed to be accessible to a wide audience: the prerequisites are first courses in algebra and general topology, together with some familiarity with the categorical notions of limit and adjoint functors. The first chapters are accessible to advanced undergraduates, with later ones at a graduate level. For all algebraists and category theorists this book will be a rewarding read.

Table of contents:
Introduction; 1. Classical Galois theory; 2. Galois theory of Grothendieck; 3. Infinitary Galois theory; 4. Categorical Galois theory of commutative rings; 5. Categorical Galois theorem and factorization systems; 6. Covering maps; 7. Non-Galoisian Galois theory; Appendix; Bibliography; Index.

Develops Galois theory in a much more general context than the undegraduate-style Galois theory of fields. In particular, the relationship with category theory is emphasised. Treats recent work by leading researchers in the field, and includes a comprehensive bibliography and index. Will be interesting for algebraists and category theorists.

Develops Galois theory in a more general context, emphasising category theory.

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Produktdetails

• Verlag: Cambridge University Press
• Seitenzahl: 356
• Erscheinungstermin: 15. Mai 2003
• Englisch
• Abmessung: 235mm x 157mm x 25mm
• Gewicht: 729g
• ISBN-13: 9780521803090
• ISBN-10: 0521803098
• Artikelnr.: 20992108

Inhaltsangabe

Introduction
1. Classical Galois theory
2. Galois theory of Grothendieck
3. Infinitary Galois theory
4. Categorical Galois theory of commutative rings
5. Categorical Galois theorem and factorization systems
6. Covering maps
7. Non-Galoisian Galois theory
Appendix
Bibliography
Index.