A concentration function estimate and intersective sets from matrices
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چکیده
We give several sufficient conditions on an infinite integer matrix (dij) for the set R = { ∑ ij∈α, i>j dij : α ⊂ N, |α| < ∞ } to be a density intersective set, including the cases dnj = j n(1 + O(1/n1+ )) and 0 < dnj = o ( √
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تاریخ انتشار 2010