Some Spaces of Double Sequences Obtained through Invariant Mean and Related Concepts
نویسندگان
چکیده
and Applied Analysis 3 ξ0,0,s,t (x) = ζ0,0,s,t = xs,t, ξ−1,0,s,t (x) = ζ−1,0,s,t (x) = xs−1,t, ξ0,−1,s,t (x) = ζ0,−1,s,t (x) = xs,t−1, ξ−1,−1,s,t (x) = ζ−1,−1,s,t (x) = xs−1,t−1. (7) Remark 1. If [Wσ]-limx = l, that is,
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