B. V. Rajarama Bhat

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math.FA2023

Operator moment dilations as block operators

B. V. Rajarama Bhat, Anindya Ghatak, Santhosh Kumar Pamula

Let $H$ be a complex Hilbert space and let ${A_{n}}_{n \geq 1}$ be a sequence of bounded linear operators on $H$ . Then a bounded operator $B$ on a Hilb…

math.FA2023

Schoenberg Correspondence for $k$ -(Super)Positive Maps on Matrix Algebras

B. V. Rajarama Bhat, Purbayan Chakraborty, Uwe Franz

We prove a Schoenberg-type correspondence for non-unital semigroups which generalizes an analogous result for unital semigroup proved by Michael Schürmann. It characterizes the gen…

Operator moment dilations as block operators

Schoenberg Correspondence for k-(Super)Positive Maps on Matrix Algebras

Schoenberg Correspondence for $k$ -(Super)Positive Maps on Matrix Algebras