TitleAlmost Ring Theory [electronic resource]
ImprintBerlin, Heidelberg : Springer Berlin Heidelberg, 2003
Connect tohttp://dx.doi.org/10.1007/b10047
Descript VI, 318 p. online resource

SUMMARY

This book develops thorough and complete foundations for the method of almost etale extensions, which is at the basis of Faltings' approach to p-adic Hodge theory. The central notion is that of an "almost ring". Almost rings are the commutative unitary monoids in a tensor category obtained as a quotient V-Mod/S of the category V-Mod of modules over a fixed ring V; the subcategory S consists of all modules annihilated by a fixed ideal m of V, satisfying certain natural conditions. The reader is assumed to be familiar with general categorical notions, some basic commutative algebra and some advanced homological algebra (derived categories, simplicial methods). Apart from these general prerequisites, the text is as self-contained as possible. One novel feature of the book - compared with Faltings' earlier treatment - is the systematic exploitation of the cotangent complex, especially for the study of deformations of almost algebras


CONTENT

Introduction -- Homological Theory -- Almost Ring Theory -- Fine Study of Almost Projective Modules -- Henselian Pairs -- Valuation Theory -- Analytic Geometry -- Appendix -- References -- Index


SUBJECT

  1. Mathematics
  2. Algebra
  3. Algebraic geometry
  4. Category theory (Mathematics)
  5. Homological algebra
  6. Commutative algebra
  7. Commutative rings
  8. Field theory (Physics)
  9. Mathematics
  10. Algebra
  11. Commutative Rings and Algebras
  12. Algebraic Geometry
  13. Category Theory
  14. Homological Algebra
  15. Field Theory and Polynomials