On subscalarity of some 2 x 2 M-hyponormal operator matrices
We provide some conditions for 2x2 operator matrices whose diagonal entries are M-hyponormal operators to be subscalar. As a consequence, we obtain that Weyl type theorem holds for such operator matrices.
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Published in | Abstract and applied analysis |
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Main Authors | , |
Format | Journal Article |
Language | English |
Published |
John Wiley & Sons, Inc
01.01.2014
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Subjects | |
Online Access | Get full text |
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Summary: | We provide some conditions for 2x2 operator matrices whose diagonal entries are M-hyponormal operators to be subscalar. As a consequence, we obtain that Weyl type theorem holds for such operator matrices. |
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ISSN: | 1085-3375 |
DOI: | 10.1155/2014/461567 |