English

Semigroup C*-algebras and toric varieties

Operator Algebras 2017-03-22 v1 K-Theory and Homology

Abstract

Let S be a finitely generated subsemigroup of Z^2. We derive a general formula for the K-theory of the left regular C*-algebra for S.

Keywords

Cite

@article{arxiv.1703.07103,
  title  = {Semigroup C*-algebras and toric varieties},
  author = {Joachim Cuntz},
  journal= {arXiv preprint arXiv:1703.07103},
  year   = {2017}
}

Comments

To be published as a chapter in a book on 'K-Theory for Group C*-Algebras and Semigroup C*-Algebras' jointly authored with Siegfried Echterhoff, Xin Li and Guoliang Yu

R2 v1 2026-06-22T18:52:09.647Z