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math.NT2017
Powerful numbers in
Quan-Hui Yang, Qing-Qing Zhao
Let be a positive integer. Recently, Niu and Liu proved that if , then the product is not a powerful number. In this…
math.NT2017
On a conjecture of Erdős about sets without pairwise coprime integers
Sándor Z. Kiss, Csaba Sándor, Quan-Hui Yang
Let be the set of positive integers. Let denote all subsets of such that neither of them contains pairwise coprime integers and $C…
math.NT2017
On some properties of representation functions related to the Erdős-Turán conjecture
Csaba Sándor, Quan-Hui Yang
For a set and , let denote the number of ordered pairs such that . The celebrated Erdős-Turán conjec…
math.NT2017
On minimal additive complements of integers
Sándor Z. Kiss, Csaba Sándor, Quan-Hui Yang
Let . If , then the set is called an additive complement to in . If no proper subset of is an additive complement t…