activity
20172021
collaborators

6 papers

math.FA2021

Bounded point evaluation for operators with the wandering subspace property

Shailesh Trivedi

We extend and study the notion of bounded point evaluation introduced by Williams for a cyclic operator to the class of operators with the wandering subspace property. We character…

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

Analytic -isometries without the wandering subspace property

Akash Anand, Sameer Chavan, Shailesh Trivedi

The wandering subspace problem for an analytic norm-increasing -isometry on a Hilbert space asks whether every -invariant subspace of can be gen…

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…

math.FA2017

Classification of Drury-Arveson-type Hilbert modules associated with certain directed graphs

Sameer Chavan, Deepak Kumar Pradhan, Shailesh Trivedi

Given a directed Cartesian product of locally finite, leafless, rooted directed trees of finite joint branching index, one may ass…

math.CV2017

Dirichlet Spaces Associated With Locally Finite Rooted Directed Trees

Sameer Chavan, Deepak Kumar Pradhan, Shailesh Trivedi

Let be a leafless, locally finite rooted directed tree. We associate with a one parameter family of Dirichlet spaces $\mathscr H_q~(q \geq…