Density of summable subsequences of a sequence and its applications
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DOI: 10.1515/ms-2017-0379
Abstract: Abstract Let x = {xn}n=1∞ $\begin{array}{} \displaystyle \{x_n\}_{n=1}^{\infty} \end{array}$ be a sequence of positive numbers, and ????x be the collection of all subsets A ⊆ ℕ such that ∑k∈A $\begin{array}{} \displaystyle \sum_{k\in A} \end{array}$ xk… read more here.
Keywords: summable subsequences; begin array; sequence; density summable ... See more keywords