Abdelmoumen, Boulbeba Boulbeba, Faculté des sciences de Sfax Tunisie, Tunisia
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Vol 34, No 4 (2020) - Dragan Djordjevic - Functional analysis, Operator theory
PERTURBATION THEORY, M-ESSENTIAL SPECTRA OF OPERATOR MATRICES
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Vol 35, No 7 (2021) - Snezana Zivkovic Zlatanovic - Operator theory
Perturbation results in the Fredholm theory and M-essential spectra of some matrix operators
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Vol 37, No 14 (2023) - Dragan Djordjevic - Functional analysis, Operator theory
On a Riesz Basis of Diagonally Generalized Subordinate Operator Matrices and Application to a Gribov Operator Matrix in Bargmann Space
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ISSN: 2406-0933