2 papers
math.FA2026
Spectral Characterizations of Schatten-class perturbations of Partial isometries
Neeru Bala, Ramesh Golla
We characterize bounded operators that are compact (respectively, Schatten-class) perturbations of scalar multiples of partial isometries with finite-dimensional kernel. Our charac…
math.FA2020
Hyperinvariant subspaces for normaloid essential isometric operators
Neeru Bala, Ramesh Golla
In this article, we prove the existence of a non-trivial hyperinvariant subspace for a subclass of compact perturbations of scalar multiple of a partial isometry. Later, we illustr…