53 citations · 145 across the 25 of their papers we have counts for
6 papers · 1 filter
Peripherally automorphic unital completely positive maps
B. V. Rajarama Bhat, Samir Kar, Bharat Talwar
We identify and characterize unital completely positive (UCP) maps on finite dimensional -algebras for which the Choi-Effros product extended to the space generated by periphe…
Iterative Roots of Multifunctions
B. V. Rajarama Bhat, Chaitanya Gopalakrishna
Some easily verifiable sufficient conditions for the nonexistence of iterative roots for multifunctions on arbitrary nonempty sets are presented. Typically if the graph of the mult…
Peripheral Poisson Boundary
B. V. Rajarama Bhat, Samir Kar, Bharat Talwar
It is shown that the operator space generated by peripheral eigenvectors of a unital completely positive map on a von Neumann algebra has a -algebra structure. This extends th…
The non-iterates are dense in the space of continuous self-maps
B. V. Rajarama Bhat, Chaitanya Gopalakrishna
In this paper we develop a tool to identify functions which have no iterative roots of any order. Using this, we prove that when is , or , every no…
On products of symmetries in von Neumann algebras
B V Rajarama Bhat, Soumyashant Nayak, P Shankar
Let be a type von Neumann algebra. We show that every unitary in may be decomposed as the product of six symmetries (that is, self-adjoint unitar…
-extreme points of entanglement breaking maps
B. V. Rajarama Bhat, Repana Devendra, Nirupama Mallick +1
In this paper we study the -convex set of unital entanglement breaking (EB-)maps on matrix algebras. General properties and an abstract characterization of -extreme point…