2 papers
math.FA2026
Essentially commuting projections onto shift-invariant subspaces
Rounak Biswas, Srijan Sarkar
In this article, using Halmos' two projections theorem, we completely characterize the essential commutativity of the orthogonal projections onto the shift-invariant subspaces $Ï_…
math.FA2025
On products and partial isometry of Toeplitz operators with operator-valued symbols
Srijan Sarkar
We solve the following problems associated with Toeplitz operators on Hilbert space-valued Hardy spaces over the unit polydisc $\mathbb{D}^…