3 papers
math.FA2020
-homogeneous tuple of operators on bounded symmetric domains
Soumitra Ghara, Surjit Kumar, Paramita Pramanick
Let be an irreducible bounded symmetric domain of rank in Let be the maximal compact subgroup of the identity component of the biholomorphic…
math.FA2019
Unitary equivalence of operator-valued multishifts
Rajeev Gupta, Surjit Kumar, Shailesh Trivedi
We systematically study various aspects of operator-valued multishifts. Beginning with basic properties, we show that the class of multishifts on the directed Cartesian product of…
math.FA2018
Von Neumann's inequality for commuting operator-valued multishifts
Rajeev Gupta, Surjit Kumar, Shailesh Trivedi
Recently, Hartz proved that every commuting contractive classical multishift with non-zero weights satisfies the matrix-version of von Neumann's inequality. We show that this resul…