%0 Journal Article %A Trey, Baptiste %T Lipschitz continuity of the eigenfunctions on optimal sets for functionals with variable coefficients %J ESAIM: Control, Optimisation and Calculus of Variations %D 2020 %V 26 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/cocv/2020010/ %R 10.1051/cocv/2020010 %G en %F COCV_2020__26_1_A89_0