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Fine Spectra of Upper Triangular Triple-Band Matrices over the Sequence Space ( )

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  • Ali Karaisa
  • Feyzi Başar

Abstract

The fine spectra of lower triangular triple-band matrices have been examined by several authors (e.g., Akhmedov (2006), Başar (2007), and Furken et al. (2010)). Here we determine the fine spectra of upper triangular triple-band matrices over the sequence space . The operator on sequence space on is defined by , where , with . In this paper we have obtained the results on the spectrum and point spectrum for the operator on the sequence space . Further, the results on continuous spectrum, residual spectrum, and fine spectrum of the operator on the sequence space are also derived. Additionally, we give the approximate point spectrum, defect spectrum, and compression spectrum of the matrix operator over the space and we give some applications.

Suggested Citation

  • Ali Karaisa & Feyzi Başar, 2013. "Fine Spectra of Upper Triangular Triple-Band Matrices over the Sequence Space ( )," Abstract and Applied Analysis, Hindawi, vol. 2013, pages 1-10, March.
    • Handle: RePEc:hin:jnlaaa:342682
    DOI: 10.1155/2013/342682
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