%A Jean-Bernard Lasserre %J Comptes rendus. Mathematique %T Gaussian mixtures closest to a given measure via optimal transport %K Gaussian mixtures %K Wasserstein distance %K semidefinite relaxations %K Moment-SOS hierarchy %P 1455-1473 %V vol.362 %D 2024 %R 10.5802/crmath.657 %I Académie des Sciences %L publications50346