23 citations · 23 across the 4 of their papers we have counts for
4 papers
Normaloid Operators and the Root Problem
B. P. Duggal, C. S. Kubrusly, H. M. Stankovic
The paper extends previous results on the nth root problem to a large class of Hilbert-space operators, namely, the class of all normaloid operators with normaloid parts, which inc…
Posinormality and the Root Problem
C. S. Kubrusly, H. M Stankovic
The paper extends three results regarding the nth root problem by embedding classes of Hilbert-space operators into the class of posinormal operators. For instance, it is shown tha…
On roots of normal operators and extensions of Ando's Theorem
Hranislav Stanković, Carlos Kubrusly
In this paper, we extend Ando's theorem on paranormal operators, which states that if is a paranormal operator and there exists $ n \in \mathbb{…
Distance Between Sets - A survey
A. Conci, C. S. Kubrusly
The purpose of this paper is to give a survey on the notions of distance between subsets either of a metric space or of a measure space, including definitions, a classification, an…