El amrani A, Blali A, Taybi MA. Spectral analysis for finite rank perturbation of diagonal operator in non-archimedean Banach space of countable type. Proyecciones (Antofagasta, On line) [Internet]. 2022Aug.26 [cited 2024Apr.23];41(5):1063-74. Available from: https://www.revistaproyecciones.cl/index.php/proyecciones/article/view/4984