Basak, Anirban; Paquette, Elliot; Zeitouni, Ofer Spectrum of random perturbations of Toeplitz matrices with finite symbols. (English) Zbl 1451.60013 Trans. Am. Math. Soc. 373, No. 7, 4999-5023 (2020). MSC: 60B20 15B05 PDFBibTeX XMLCite \textit{A. Basak} et al., Trans. Am. Math. Soc. 373, No. 7, 4999--5023 (2020; Zbl 1451.60013) Full Text: DOI arXiv
Roch, Steffen Pseudospectra of operator polynomials. (English) Zbl 0994.47017 Dijksma, A. (ed.) et al., Recent advances in operator theory. The Israel Gohberg anniversary volume. Proceedings of the international workshop on operator theory and its applications, IWOTA-98, Groningen, Netherlands, June 30-July 3, 1998. Basel: Birkhäuser. Oper. Theory, Adv. Appl. 124, 545-558 (2001). Reviewer: Takashi Ichinose (Kanazawa) MSC: 47A56 47A10 47B35 65R20 PDFBibTeX XMLCite \textit{S. Roch}, in: Recent advances in operator theory. The Israel Gohberg anniversary volume. Proceedings of the international workshop on operator theory and its applications, IWOTA-98, Groningen, Netherlands, June 30--July 3, 1998. Basel: Birkhäuser. 545--558 (2001; Zbl 0994.47017)
Wolff, M. P. H. On the approximation of operators and the convergence of the spectra of the approximants. (English) Zbl 0904.47002 Gohberg, I. (ed.) et al., Recent progress in operator theory. Vol. II. Proceedings of the international workshop on operator theory and applications, IWOTA 95, Regensburg, Germany, July 31-August 4, 1995. Basel: Birkhäuser. Oper. Theory, Adv. Appl. 103, 279-283 (1998). MSC: 47A10 47A58 41A35 47B35 15A18 PDFBibTeX XMLCite \textit{M. P. H. Wolff}, in: Recent progress in operator theory. Vol. II. Proceedings of the international workshop on operator theory and applications, IWOTA 95, Regensburg, Germany, July 31-August 4, 1995. Basel: Birkhäuser. 279--283 (1998; Zbl 0904.47002)
Lumsdaine, Andrew; Wu, Deyun Spectra and pseudospectra of block Toeplitz matrices. (English) Zbl 0951.15010 Linear Algebra Appl. 272, 103-130 (1998). MSC: 15A18 15B57 65F15 65F50 PDFBibTeX XMLCite \textit{A. Lumsdaine} and \textit{D. Wu}, Linear Algebra Appl. 272, 103--130 (1998; Zbl 0951.15010) Full Text: DOI