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Published in 2024 at "Filomat"
DOI: 10.2298/fil2407277l
Abstract: Let X,Y be Banach spaces, and upper triangular operator matrices acting on X?Y are studied. Given bounded operators A, B, we obtain several equivalent conditions forMX = [A X 0 B] to be a left…
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Keywords:
operator;
right browder;
browder operator;
browder ... See more keywords