1. Aiena, P.: Fredholm and Local Spectral Theory with Application to Multipliers. Kluwer Academic, Boston (2004)
2. Cao, X.H., Guo, M.Z., Meng, B.: Drazin spectrum and Weyl’s theorem for operator matrices. J. Math. Res. Expos. 26(3), 413–422 (2006)
3. Djordjevic, S.V., Han, Y.M.: A note of Weyl’s theorem for operator matrices. Proc. Am. Math. Soc 131, 2543–2547 (2002)
4. Duggal, B.P.: Browder and Weyl spectra of upper triangular operator matrices. Filomat 24(2), 111–130 (2010)
5. Djordjevic, S.V., Duggal, B.P.: Spectral properties of linear operators through invariant subspaces. Funct. Anal. Approx. Comput. 1, 19–29 (2009)