Abstract
Let \({A = \{a_{1},a_{2},\dots{} \}}\)\({(a_{1} < a_{2} < \cdots )}\) be an infinite sequence of nonnegative integers, and let \({R_{A,2}(n)}\) denote the number of solutions of \({a_{x}+a_{y}=n}\)\({(a_{x},a_{y} \in A)}\). P. Erdős, A. Sárközy and V. T. Sós proved that if \({\lim_{N\to\infty}\frac{B(A,N)}{\sqrt{N}}=+\infty}\) then \({|\Delta_{1}(R_{A,2}(n))|}\) cannot be bounded, where \({B(A,N)}\) denotes the number of blocks formed by consecutive integers in A up to N and \({\Delta_{l}}\) denotes the l-th difference. Their result was extended to \({\Delta_{l}(R_{A,2}(n))}\) for any fixed \({l\ge2}\). In this paper we give further generalizations of this problem.
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The first author was supported by the National Research, Development and Innovation Office NKFIH Grants No. K115288 and K109789, K129335. This paper was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences. Supported by the ÚNKP-18-4 New National Excellence Program of the Ministry of Human Capacities.
The second author was supported by the NKFIH Grants No. K109789, K129335. This paper was supported by the János Bolyai Research Scholarship of the Hungarian Academy of Sciences.
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Kiss, S.Z., Sándor, C. Generalizations of some results about the regularity properties of an additive representation function. Acta Math. Hungar. 157, 121–140 (2019). https://doi.org/10.1007/s10474-018-0890-z
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DOI: https://doi.org/10.1007/s10474-018-0890-z