References
- D. S. Djordjevic, Perturbations of spectra of operator matrices, J. Operator Theory 48 (2002), no. 3, 467-486.
-
H. Du and J. Pan, Perturbation of spectrums of
$2{\times}2$ operator matrices, Proc. Amer. Math. Soc. 121 (1994), no. 3, 761-766. - B. P. Duggal, Upper triangular operator matrices, SVEP and Browder, Weyl theorems, Integral Equations Operator Theory 63 (2009), no. 1, 17-28. https://doi.org/10.1007/s00020-008-1648-8
- G. Hai and A. Chen, Perturbations of the right and left spectra for operator matrices, J. Operator Theory 67 (2012), no. 1, 207-214.
-
J. K. Han, H. Y. Lee, and W. Y. Lee, Invertible completions of
$2{\times}2$ upper triangular operator matrices, Proc. Amer. Math. Soc. 128 (2000), no. 1, 119-123. https://doi.org/10.1090/S0002-9939-99-04965-5 - R. Harte, Invertibility and Singularity for Bounded Linear Operators, Marcel Dekker, New York, 1988.
- M. Kolundzija, Right invertibility of operator matrices, Funct. Anal. Approx. Comput. 2 (2010), no. 1, 1-5.
- W. Y. Lee, Weyl spectra of operator matrices, Proc. Amer. Math. Soc. 129 (2001), no. 1, 131-138. https://doi.org/10.1090/S0002-9939-00-05846-9
- V. Muler, Spectral Theory of Linear Operators and Spectral Systems in Banach Algebras, Birkhauser Verlag, Basel-Boston-Berlin, 2007.
- C. Tretter, Spectral Theory of Block Operator Matrices and Applications, Imperial College Press, London, 2008.
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