Document Type : Research Paper

Author

• Javad Fathi

Department of Mathematic, Faculty of Science, Hormozgan University, Bandarabbas, Iran

Abstract

The main purpose of this paper is to determine the fine spectrum of the generalized upper triangular double-band matrices $\Delta^{uv}$ over the sequence spaces $c_o$ and $c$. These results are more general than the spectrum of upper triangular double-band matrices of Karakaya and Altun [V. Karakaya, M. Altun, Fine spectra of upper triangular doubleband matrices, Journal of Computational and Applied Mathematics, 234(2010) 1387-1394].

Keywords

• Spectrum of an operator
• matrix mapping
• sequence space