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On the Fine Spectrum of the Operator Defined by the Lambda Matrix over the Spaces of Null and Convergent Sequences

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  • Medine Yeşilkayagil
  • Feyzi Başar

Abstract

The main purpose of this paper is to determine the fine spectrum with respect to Goldberg's classification of the operator defined by the lambda matrix over the sequence spaces and c . As a new development, we give the approximate point spectrum, defect spectrum, and compression spectrum of the matrix operator on the sequence spaces and c . Finally, we present a Mercerian theorem. Since the matrix is reduced to a regular matrix depending on the choice of the sequence having certain properties and its spectrum is firstly investigated, our work is new and the results are comprehensive.

Suggested Citation

  • Medine Yeşilkayagil & Feyzi Başar, 2013. "On the Fine Spectrum of the Operator Defined by the Lambda Matrix over the Spaces of Null and Convergent Sequences," Abstract and Applied Analysis, Hindawi, vol. 2013, pages 1-13, March.
    • Handle: RePEc:hin:jnlaaa:687393
    DOI: 10.1155/2013/687393
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