Dimension of finite free complexes over commutative noetherian rings

Lars Winther Christensen, Srikanth B. Iyengar

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Foxby defined the (Krull) dimension of a complex of modules over a commutative Noetherian ring in terms of the dimension of its homology modules. In this note it is proved that the dimension of a bounded complex of free modules of finite rank can be computed directly from the matrices representing the differentials of the complex.

Original languageEnglish
Title of host publicationCommutative Algebra
Subtitle of host publication150 Years with Roger and Sylvia Wiegand
EditorsNicholas R. Baeth, Thiago H. Freitas, Graham J. Leuschke, Victor H. Jorge Pérez
PublisherAmerican Mathematical Society
Pages11-18
Number of pages8
ISBN (Print)9781470456016
DOIs
StatePublished - 2021
Event2nd International Meeting on Commutative Algebra and Related Areas, SIMCARA 2019, and the AMS Special Session on Commutative Algebra, 2019 - Madisson, United States
Duration: Sep 14 2019Sep 15 2019

Publication series

NameContemporary Mathematics
Volume773
ISSN (Print)0271-4132
ISSN (Electronic)1098-3627

Conference

Conference2nd International Meeting on Commutative Algebra and Related Areas, SIMCARA 2019, and the AMS Special Session on Commutative Algebra, 2019
Country/TerritoryUnited States
CityMadisson
Period09/14/1909/15/19

Keywords

  • Codimension
  • Dimension
  • Perfect complex

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