Browsing Proyecciones: Journal of Mathematics by Author "A. El Bakkali, A."

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Upper triangular operator matrices and limit points of the essential spectrum

Karmouni, Mohammed; Tajmouati, A.; A. El Bakkali, A.. Proyecciones. Journal of Mathematics; Vol 38 No 3 (2019); 401-409
Upper triangular operator matrices and limit points of the essential spectrum

Karmouni, Mohammed; Tajmouati, A.; A. El Bakkali, A.. Proyecciones. Journal of Mathematics; Vol 38 No 3 (2019); 401-409