Results 91 to 100 of about 507 (130)

On sequence spaces defined by arithmetic function and Hausdorff measure of noncompactness

open access: closedRocky Mountain Journal of Mathematics, 2022
In this study, we construct an infinite matrix S= (snk) defined by snk =  k S(n) , k | n, 0 , k n for all n,k = 1,2,3, · · · , where S(n) stands for the sum of the positive divisors of n, and introduce sequence spaces `p(S), c0(S), c(S) and `∞(S) by ...
Taja Yaying, Nipen Saikia
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On matrix transformations and Hausdorff measure of noncompactness of Euler difference sequence spaces of fractional order

open access: closedQuaestiones Mathematicae. Journal of the South African Mathematical Society, 2019
In the present paper, some results on matrix mappings and Hausdorff measure of noncompactness of certain generalized Euler difference sequence spaces of fractional order are discussed.
P. Baliarsingh, Uğur Kadak
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