3 papers
math.FA2022
Lifting -commuting and -intertwining operators
Sourav Pal, Prajakta Sahasrabuddhe
There are several proofs of the classical commutant lifting and intertwining lifting theorems in the literature. In this article, we present analogous proofs to a few -commuting…
math.FA2022
Triangular Tetrablock-contractions, factorization of contractions, dilation and subvarieties
Sourav Pal
A commuting triple of Hilbert space operators , for which the closed tetrablock is a spectral set, is called a \textit{tetrablock-contraction} or simply…
math.FA2022
Common reducing subspaces and decompositions of contractions
Sourav Pal
A commuting triple of Hilbert space operators , for which the closed tetrablock is a spectral set, is called a \textit{tetrablock-contraction} or si…