%0 Journal Article %A Pham, Thang %T A sum–product theorem in matrix rings over finite fields %J Comptes Rendus. Mathématique %D 2019 %P 766-770 %V 357 %N 10 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.crma.2019.09.008/ %R 10.1016/j.crma.2019.09.008 %G en %F CRMATH_2019__357_10_766_0