References
- P. Aiena and P. Pena, A variation on Weyl's theorem, J. Math. Anal. Appl. 324 (2006), no. 1, 566-579. https://doi.org/10.1016/j.jmaa.2005.11.027
- M. Amouch and M. Berkani, On the property (gw), Mediterr. J. Math. 5 (2008), no. 3, 371-378. https://doi.org/10.1007/s00009-008-0156-z
- M. Berkani, On a class of quasi-Fredholm operators, Integr. Equ. Oper. Theory 34 (1999), no. 2, 244-249. https://doi.org/10.1007/BF01236475
- M. Berkani, Index of B-Fredholm operators and generalization of a-Weyl's theorem, Proc. Amer. Math. Soc. 130 (2002), no. 6, 1717-1723. https://doi.org/10.1090/S0002-9939-01-06291-8
- M. Berkani, N. Castro, and S. V. Djordjevic, Single valued extension property and generalized Weyl's theorem, Math. Bohem. 131 (2006), no. 1, 29-38.
- M. Berkani and J. J. Koliha, Weyl type theorems for bounded linear operators, Acta Sci. Math. (Szeged) 69 (2003), no. 1-2, 359-376.
- M. Berkani and M. Sarih, On semi B-Fredholm operators, Glasg. Math. J. 43 (2001), no. 3, 457-465.
- M. Berkani and H. Zariouh, Extended Weyl type theorems, Math. Bohem. 134 (2009), no. 4, 369-378.
- S. Clary, Equality of spectra of quasisimilar hyponormal operators, Proc. Amer. Math. Soc. 53 (1975), no. 1, 88-90. https://doi.org/10.1090/S0002-9939-1975-0390824-7
- L. A. Coburn, Weyl's theorem for nonnormal operators, Michigan Math. J. 13 (1966), 285-288. https://doi.org/10.1307/mmj/1031732778
- S. V. Djordjevic and Y. M. Han, A note on Weyl's theorem for operator matrices, Proc. Amer. Math. Soc. 131 (2003), no. 8, 2543-2547. https://doi.org/10.1090/S0002-9939-02-06808-9
- B. P. Duggal and C. S. Kubrusly, Weyl's theorem for direct sums, Studia Sci. Math. Hungar. 44 (2007), no. 2, 275-290.
- A. Gupta and N. Kashyap, Generalized a-Weyl's theorem for direct sums, Mat. Vesnik 62 (2010), no. 4, 265-270.
- Y. M. Han and S. V. Djordjevic, a-Weyl's theorem for operator matrices, Proc. Amer. Math. Soc. 130 (2002), no. 3, 715-722. https://doi.org/10.1090/S0002-9939-01-06110-X
- R. E. Harte and W. Y. Lee, Another note on Weyl's theorem, Trans. Amer. Math. Soc. 349 (1997), no. 5, 2115-2124. https://doi.org/10.1090/S0002-9947-97-01881-3
- H. Heuser, Functional Analysis, John Wiley & Sons Inc, New York, 1982.
- K. B. Laursen and M. M. Neumann, An Introduction to Local Spectral Theory, Clarendon, Oxford, 2000.
- D. C. Lay, Spectral analysis using ascent, descent, nullity and defect, Math. Ann. 184 (1970), 197-214. https://doi.org/10.1007/BF01351564
- 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. Rakocevic, On a class of operators, Mat. Vesnik 37 (1985), no. 4, 423-426.
- V. Rakocevic, Operators obeying a-Weyl's theorem, Rev. Roumaine Math. Pures Appl. 34 (1989), no. 10, 915-919.
- S. Roch and B. Silbermann, Continuity of generalized inverses in Banach algebras, Studia Math. 136 (1999), no. 3, 197-227.