Fine spectra of upper triangular double-band matrices


KARAKAYA V. , Altun M.

JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS, vol.234, no.5, pp.1387-1394, 2010 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 234 Issue: 5
  • Publication Date: 2010
  • Doi Number: 10.1016/j.cam.2010.02.014
  • Title of Journal : JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
  • Page Numbers: pp.1387-1394
  • Keywords: Spectrum of an operator, Infinite matrices, Sequence spaces, CESARO OPERATOR

Abstract

The fine spectra of lower triangular double-band matrices have been examined by several authors (e.g.[13,22]). Here we determine the fine spectra of upper triangular double-band matrices over the sequence spaces c(0) and c. Upper triangular double-band matrices are infinite matrices which include the left-shift, averaging and difference operators. (C) 2010 Elsevier B.V. All rights reserved.