Geodesic
On strongly sum-free subsets of abelian groups
Colloquium Mathematicum, Tome 71 (1996) no. 1, pp. 149-151

Voir la notice de l'article provenant de la source Institute of Mathematics Polish Academy of Sciences

In his book on unsolved problems in number theory [1] R. K. Guy asks whether for every natural l there exists $n_0 = n_0(l)$ with the following property: for every $n ≥ n_0$ and any n elements $a_1,...,a_n$ of a group such that the product of any two of them is different from the unit element of the group, there exist l of the $a_i$ such that $a_{i_j}a_{i_k} ≠ a_m$ for $1 ≤ j k ≤ l$ and $1 ≤ m ≤ n$. In this note we answer this question in the affirmative in the first non-trivial case when l=3 and the group is abelian, proving the following result.
DOI : 10.4064/cm-71-1-149-151

Tomasz Łuczak 1 ; Tomasz Schoen 1

1 
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Tomasz Łuczak; Tomasz Schoen. On strongly sum-free subsets of abelian groups. Colloquium Mathematicum, Tome 71 (1996) no. 1, pp. 149-151. doi: 10.4064/cm-71-1-149-151

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