Paul, Avinoy; Tripathy, Binod Chandra Subdivisions of the spectra for \(D(r,0,s,0,t)\) operator on certain sequence spaces. (English) Zbl 07801825 Bol. Soc. Parana. Mat. (3) 40, Paper No. 37, 10 p. (2022). MSC: 40H05 40C99 46A35 47A10 PDFBibTeX XMLCite \textit{A. Paul} and \textit{B. C. Tripathy}, Bol. Soc. Parana. Mat. (3) 40, Paper No. 37, 10 p. (2022; Zbl 07801825) Full Text: DOI
Bişgin, Mustafa Cemil On the fine spectrum of the operator \(Q (r, s, t, u)\) over \(\ell_p\) and \(bv_p\), \(1 < p < \infty\). (English) Zbl 1507.47077 Rocky Mt. J. Math. 52, No. 3, 777-791 (2022). MSC: 47B37 47B39 47A10 PDFBibTeX XMLCite \textit{M. C. Bişgin}, Rocky Mt. J. Math. 52, No. 3, 777--791 (2022; Zbl 1507.47077) Full Text: DOI Link
El-Shabrawy, Saad R.; Sawano, Yoshihiro On the compactness and spectra of the generalized difference operator on the spaces \(\ell^\infty\) and bv. (English) Zbl 07515563 Oper. Matrices 15, No. 3, 959-983 (2021). MSC: 47A10 47B37 46B45 PDFBibTeX XMLCite \textit{S. R. El-Shabrawy} and \textit{Y. Sawano}, Oper. Matrices 15, No. 3, 959--983 (2021; Zbl 07515563) Full Text: DOI
Sawano, Yoshihiro; El-Shabrawy, Saad R. The spectra of the generalized difference operators on the spaces of convergent series. (English) Zbl 1521.47058 Linear Multilinear Algebra 69, No. 4, 732-751 (2021). MSC: 47B39 47A10 47B37 46B45 PDFBibTeX XMLCite \textit{Y. Sawano} and \textit{S. R. El-Shabrawy}, Linear Multilinear Algebra 69, No. 4, 732--751 (2021; Zbl 1521.47058) Full Text: DOI
Srivastava, P. D.; Birbonshi, Riddhick; Patra, Arnab Criteria for the absence of point spectrum on the boundary of the numerical range of tridiagonal matrices. (English) Zbl 07291447 Proc. Natl. Acad. Sci. India, Sect. A, Phys. Sci. 90, No. 2, 245-250 (2020). MSC: 47A12 47A10 PDFBibTeX XMLCite \textit{P. D. Srivastava} et al., Proc. Natl. Acad. Sci. India, Sect. A, Phys. Sci. 90, No. 2, 245--250 (2020; Zbl 07291447) Full Text: DOI arXiv
Durna, Nuh; Kiliç, Rabia Spectra and fine spectra for the upper triangular band matrix \(U(a_0, a_1, a_2; b_0, b_1, b_2)\) over the sequence space \(c_0\). (English) Zbl 07216087 Proyecciones 38, No. 1, 145-162 (2019). MSC: 47A10 47B37 15A18 PDFBibTeX XMLCite \textit{N. Durna} and \textit{R. Kiliç}, Proyecciones 38, No. 1, 145--162 (2019; Zbl 07216087) Full Text: DOI
Yeşilkayagil, Medine; Başar, Feyzi A survey for the spectrum of triangles over sequence spaces. (English) Zbl 07122690 Numer. Funct. Anal. Optim. 40, No. 16, 1898-1917 (2019). MSC: 47A10 47B37 PDFBibTeX XMLCite \textit{M. Yeşilkayagil} and \textit{F. Başar}, Numer. Funct. Anal. Optim. 40, No. 16, 1898--1917 (2019; Zbl 07122690) Full Text: DOI
Tripathy, Binod Chandra; Das, Rituparna Fine spectrum of the upper triangular matrix \(U(r,0,0,s)\) over the sequence spaces \(c_0\) and \(c\). (English) Zbl 1508.47075 Proyecciones 37, No. 1, 85-101 (2018). MSC: 47B37 47A10 40C05 40C15 40D20 40H05 PDFBibTeX XMLCite \textit{B. C. Tripathy} and \textit{R. Das}, Proyecciones 37, No. 1, 85--101 (2018; Zbl 1508.47075) Full Text: DOI
Das, Rituparna On the fine spectrum of the lower triangular matrix \(B(r,s)\) over the Hahn sequence space. (English) Zbl 1489.47006 Kyungpook Math. J. 57, No. 3, 441-455 (2017). MSC: 47A10 47B37 PDFBibTeX XMLCite \textit{R. Das}, Kyungpook Math. J. 57, No. 3, 441--455 (2017; Zbl 1489.47006) Full Text: DOI