Rajeev Gupta

activity

20162020

collaborators

3 papers

math.FA2020

Dirichlet-type spaces on the unit ball and joint 2-isometries

Sameer Chavan, Rajeev Gupta, Md. Ramiz Reza

We obtain a formula that relates the spherical moments of the multiplication tuple on a Dirichlet-type space to a complex moment problem in several variables. This can be seen as t…

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.FA2016

Operator Space Structures on $ℓ^{1} (n) .$

Rajeev Gupta, Md Ramiz Reza

We show that the complex normed linear space $ℓ^{1} (n),$ $n > 1,$ has no isometric embedding into $k \times k$ complex matrices for any $k \in N$ and discuss a class of infin…

Dirichlet-type spaces on the unit ball and joint 2-isometries

Unitary equivalence of operator-valued multishifts

Operator Space Structures on ℓ1(n).

Operator Space Structures on $ℓ^{1} (n) .$