Characterizations on upper semi-Fredholmness of two-by-two operator matrices
Author:
Publisher
Springer Science and Business Media LLC
Subject
Algebra and Number Theory,Analysis
Link
https://link.springer.com/content/pdf/10.1007/s43037-023-00306-w.pdf
Reference13 articles.
1. Bai, Q.M., Huang, J.J., Chen, A.: Weyl type theorems of $$2\times 2$$ upper triangular operator matrices. J. Math. Anal. Appl. 434, 1065–1076 (2016)
2. Berkani, M., Kachad, K.: New Browder–Weyl type theorems. Bull. Korean Math. Soc. 49(2), 1027–1040 (2015)
3. Cao, X.H.: Browder spectra for the upper triangular operator matrices. J. Math. Anal. Appl. 342, 477–484 (2008)
4. Cao, X.H., Guo, M.Z., Meng, B.: Semi-Fredholm spectrum and Weyl’s theorem for operator matrices. Acta Math. Sin. (Engl. Ser.) 22(1), 169–178 (2006)
5. Cvetković-Ilić, D.S.: Completions of upper-triangular matrices to left-Fredholm operators with non-positive index. J. Oper. Theory 76(1), 93–106 (2016)
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