On some double sequence spaces of interval number.
Keywords:
Complete space, Interval number, Modulus function, Double sequence spaceAbstract
Esi and Yasemin defined the metric spaces , , , and lp(f, p, s) of sequences of interval numbers by a modulus function. In this study, we consider a generalization for double sequences of these metric spaces by taking a ? function, satisfying the following conditions, instead of s parameter. For this aim, let ?(k, l) be a positive function for all k, l ? N such that
(i)
(ii)
or
?(k, l) = 1.
Therefore, according to class of functions which satisfying the conditions (i) and (ii) we deal with the metric spaces and of double sequences of interval numbers defined by a modulus function.
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