Fine spectra of upper triangular double-band matrices
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摘要
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 c0 and c. Upper triangular double-band matrices are infinite matrices which include the left-shift, averaging and difference operators.
论文关键词：47A10,47B37,Spectrum of an operator,Infinite matrices,Sequence spaces
论文评审过程：Received 1 February 2009, Revised 2 February 2010, Available online 11 February 2010.
论文官网地址：https://doi.org/10.1016/j.cam.2010.02.014
