## Abstract and Applied Analysis

### On Subscalarity of Some 2 × 2 M-Hyponormal Operator Matrices

#### Abstract

We provide some conditions for $2{\times}2$ 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.

#### Article information

Source
Abstr. Appl. Anal., Volume 2014, Special Issue (2014), Article ID 461567, 7 pages.

Dates
First available in Project Euclid: 2 October 2014

https://projecteuclid.org/euclid.aaa/1412278805

Digital Object Identifier
doi:10.1155/2014/461567

Mathematical Reviews number (MathSciNet)
MR3176747

Zentralblatt MATH identifier
07022424

#### Citation

Zuo, Fei; Shen, Junli. On Subscalarity of Some 2 × 2 M -Hyponormal Operator Matrices. Abstr. Appl. Anal. 2014, Special Issue (2014), Article ID 461567, 7 pages. doi:10.1155/2014/461567. https://projecteuclid.org/euclid.aaa/1412278805

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