On 2 × 2 operator matrices
- 주제(키워드) 2-hyponormal operators , Invariant subspaces , Subscalar operators , The property (β)
- 관리정보기술 faculty
- 등재 SCIE, SCOPUS
- 발행기관 Element d.o.o.
- 발행년도 2011
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000092716
- 본문언어 영어
초록/요약
In this paper, we show that some 2 × 2 operator matrices have scalar extensions. In particular, we focus on some 2-hyponormal operators and their generalizations. As a corollary, we get that such operator matrices have nontrivial invariant subspaces if their spectra have nonempty interiors in the complex plane. © element, Zagreb.
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