142 citations to 10.1002/mana.19941670102 (Crossref Cited-By Service)
  1. Margarita Kraus, Matthias Langer, Christiane Tretter, “Variational principles and eigenvalue estimates for unbounded block operator matrices and applications”, Journal of Computational and Applied Mathematics, 171, № 1-2, 2004, 311  crossref
  2. V. B. Belyaev, A. K. Motovilov, “Perturbation of an embedded eigenvalue by a nearby resonance”, Theor Math Phys, 111, № 1, 1997, 454  crossref
  3. Aref Jeribi, Bilel Krichen, Mohammed Zarai Dhahri, “Essential spectra of some matrix operators involving γ-relatively bounded entries and an application”, Linear and Multilinear Algebra, 64, № 8, 2016, 1654  crossref
  4. Aymen Ammar, Aicha Ezzadam, Aref Jeribi, “A Characterization of the Essential Spectra of $2\times 2$ Block Matrices of Linear Relations”, Bull. Iran. Math. Soc., 48, № 5, 2022, 2463  crossref
  5. Hind Hashem, Ahmed El-Sayed, Dumitru Baleanu, “Existence Results for Block Matrix Operator of Fractional Orders in Banach Algebras”, Mathematics, 7, № 9, 2019, 856  crossref
  6. M. É. Muminov, T. Kh. Rasulov, “An eigenvalue multiplicity formula for the Schur complement of a 3 × 3 block operator matrix”, Sib Math J, 56, № 4, 2015, 699  crossref
  7. Farid Ammar Khodja, Cédric Dupaix, 17, Recent Advances in PDEs: Analysis, Numerics and Control, 2018, 1  crossref
  8. Jiangang Qi, Shaozhu Chen, “Essential Spectra of One-Dimensional Dirac Operators”, Integr. Equ. Oper. Theory, 74, № 1, 2012, 7  crossref
  9. Aref Jeribi, Spectral Theory and Applications of Linear Operators and Block Operator Matrices, 2015, 327  crossref
  10. Aref Jeribi, Ines Walha, “Gustafson, weidmann, kato, wolf, schechter and browder essential spectra of some matrix operator and application to two-group transport equation”, Math. Nachr., 284, № 1, 2011, 67  crossref
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