Certain Properties Involving the Joint Essential Numerical Ranges
O. S. Cyprian · Asian Research Journal of Mathematics · 2020
The concept of essential numerical range of an operator was dened and studied by Stamp i and Williams in 1972. Researchers generalised this idea of essential numerical range to a group of operators to the joint essential numerical range. In this paper, we consider the jointessent...
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Research Article
10.9734/arjom/2020/v16i330176