Zguitti, Hassane Further common local spectral properties for bounded linear operators. (Furter common local spectral properties for bounded linear operators.) (English) Zbl 07289365 Proyecciones 39, No. 1, 243-259 (2020). MSC: 47A10 47A11 47A53 47A55 PDF BibTeX XML Cite \textit{H. Zguitti}, Proyecciones 39, No. 1, 243--259 (2020; Zbl 07289365) Full Text: DOI
Zguitti, Hassane A note on Drazin invertibility for upper triangular block operators. (English) Zbl 1304.47005 Mediterr. J. Math. 10, No. 3, 1497-1507 (2013). Reviewer: Carlos R. Carpintero (Cumaná) MSC: 47A10 47A11 47A53 PDF BibTeX XML Cite \textit{H. Zguitti}, Mediterr. J. Math. 10, No. 3, 1497--1507 (2013; Zbl 1304.47005) Full Text: DOI
Zguitti, Hassane On the Drazin inverse for upper triangular operator matrices. (English) Zbl 1312.47003 Bull. Math. Anal. Appl. 2, No. 2, 27-33 (2010). MSC: 47A05 47A11 PDF BibTeX XML Cite \textit{H. Zguitti}, Bull. Math. Anal. Appl. 2, No. 2, 27--33 (2010; Zbl 1312.47003) Full Text: Link
Zguitti, H. A note on generalized Weyl’s theorem. (English) Zbl 1101.47002 J. Math. Anal. Appl. 316, No. 1, 373-381 (2006). Reviewer: Mohamed Zohry (Tétouan) MSC: 47A10 47A53 47B20 PDF BibTeX XML Cite \textit{H. Zguitti}, J. Math. Anal. Appl. 316, No. 1, 373--381 (2006; Zbl 1101.47002) Full Text: DOI