| Home > Articles > Published articles > Abstract bivariant Cuntz semigroups |
| Date: | 2020 |
| Abstract: | We show that abstract Cuntz semigroups form a closed symmetric monoidal category. Thus, given Cuntz semigroups S and T, there is another Cuntz semigroup [S,T] playing the role of morphisms from S to T. Applied to C∗-algebras A and B, the semigroup [Cu(A), Cu(B)] should be considered as the target in analogues of the UCT for bivariant theories of Cuntz semigroups. Abstract bivariant Cuntz semigroups are computable in a number of interesting cases. We also show that order-zero maps between C∗-algebras naturally define elements in the respective bivariant Cuntz semigroup. |
| Grants: | Ministerio de Ciencia e Innovación MTM2011-28992-C02-01 Ministerio de Economía y Competitividad MTM2014-53644-P |
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| Language: | Anglès |
| Document: | Article ; recerca ; Versió acceptada per publicar |
| Subject: | Cuntz semigroup ; Tensor product ; Continuous poset ; C∗-algebra |
| Published in: | International mathematics research notices, Vol. 2020, Issue 17 (September 2020) , p. 5342-5386, ISSN 1687-0247 |
Postprint 30 p, 598.8 KB |