Subset sums in abelian groups

Eric Balandraud, Benjamin Girard, Simon Griffiths +1

Denoting by Sigma(S) the set of subset sums of a subset S of a finite abelian group G, we prove that |Sigma(S)| >= |S|(|S|+2)/4-1 whenever S is symmetric, |G| is odd and Sigma(S) i…