Basar, FeyziKaraisa, Ali2024-02-232024-02-232015978-0-7354-1323-80094-243Xhttps://doi.org/10.1063/1.4930511https://hdl.handle.net/20.500.12452/12929International Conference on Advancements in Mathematical Sciences (AMS) -- NOV 05-07, 2015 -- Antalya, TURKEYThe fine spectra of lower triangular triple-band matrices in some sequence spaces was examined by several authors. Recently, Karakaya and Altun determined the fine spectra of upper triangular double-band matrices over the sequence spaces c(0) and c, in [1]. In this paper, we determine the fine spectra of the upper triangular triple-band matrix over the sequence spaces c(0), c and l(infinity.) Additionally, we give the approximate point spectrum, the defect spectrum and the compression spectrum of the matrix operator A(r,s,t) over the spaces c(0), c and l(infinity) with some applications. These results are more general than the corresponding results obtained by Karakaya and Altun [J. Comput. Appl. Math. 234 (2010), 1387-1394].eninfo:eu-repo/semantics/closedAccessSpectrum Of An OperatorUpper Triple Band MatrixSpectral Mapping TheoremSequence SpacesGoldberg's ClassificationConference Object16762-s2.0-84961622580WOS:00037181870008510.1063/1.4930511