Belen, Cemal; Mursaleen, M.; Rizvi, Syed M. H.
(UNIV NIS, FAC SCI MATH, PO BOX 224, VISEGRADSKA 33, NIS, 18000, SERBIA MONTENEG, 2018)
The concepts of sigma-statistical convergence, statistical sigma-convergence and strong sigma(q)-convergence of single (ordinary) sequences have been introduced and studied in [M. Mursaleen, O. H. H. Edely, On the invariant ...