Now showing items 1-3 of 3

• #### Boundary Representations of Operator Spaces, and Compact Rectangular Matrix Convex Sets ﻿

[OWP-2016-24] (Mathematisches Forschungsinstitut Oberwolfach, 2016-12-13)
We initiate the study of matrix convexity for operator spaces. We define the notion of compact rectangular matrix convex set, and prove the natural analogs of the Krein-Milman and the bipolar theorems in this context. We ...
• #### Cocycle Superrigidity and Group Actions on Stably Finite C*-Algebras ﻿

[OWP-2017-01] (Mathematisches Forschungsinstitut Oberwolfach, 2017-01-17)
Let $\Lambda$ be a countably infinite property (T) group, and let $D$ be UHF-algebra of infinite type. We prove that there exists a continuum of pairwise non (weakly) cocycle conjugate, strongly outer actions of \$\Lambda ...
• #### The Pseudo-Hyperresolution and Applications ﻿

[OWP-2017-17] (Mathematisches Forschungsinstitut Oberwolfach, 2017-07-04)
Resolving objects in an abelian category by injective (projective) resolutions is a fundamental problem in mathematics, and this article aims at introducing a particular solution called “Pseudo-hyperresolutions”. This ...