Asymptotic behavior of u-capacities and singular perturbations for the Dirichlet-Laplacian Laura Abatangelo, Virginie Bonnaillie-Noël, Corentin Léna and Paolo Musolino ESAIM: COCV, 27 (2021) S25 Published online: 01 March 2021 DOI: 10.1051/cocv/2020078