scientific article; zbMATH DE number 7274322
Bekkai Messirdi, Sofiane Messirdi, Sanaa Messirdi, Bendjedid Sadli
Publication date: 12 November 2020
Full work available at URL: http://fairpartners.ro/upload_poze_documente/files/volume%2013%2C%20no.%202/8_MESSIRDI.pdf
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generalized Drazin invertible operatorsleft and right generalized Drazin invertible operatorsapproximate point spectrum and surjectivity spectrumcommuting perturbationsquasinilpotent part and analytical core
Linear operators defined by compactness properties (47B07) Riesz operators; eigenvalue distributions; approximation numbers, (s)-numbers, Kolmogorov numbers, entropy numbers, etc. of operators (47B06) Perturbation theory of linear operators (47A55) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05)
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