On upper triangular operator 2 x 2 matrices over C*-algebras
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DOI: 10.2298/fil2003691i
Abstract: We study adjointable, bounded operators on the direct sum of two copies of the standard Hilbert C*-module over a unital C*-algebra A that are given by upper triangular 2 by 2 operator matrices. Using the… read more here.
Keywords: triangular operator; upper triangular; matrices algebras; operator matrices ... See more keywords
Property $(w)$ of upper triangular operator Matrices
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DOI: 10.5556/j.tkjm.51.2020.2256
Abstract: Let $M_C=\begin{pmatrix} A & C \\ 0 & B \\ \end{pmatrix}\in\LB(\x,\y)$ be be an upper triangulate Banach spaceoperator. The relationship between the spectra of $M_C$ and $M_0,$ and theirvarious distinguished parts, has been studied by… read more here.
Keywords: operator matrices; property; property upper; upper triangular ... See more keywords