%0 Journal Article %A Mazzoleni, Dario %A Zucco, Davide %T Convex combinations of low eigenvalues, Fraenkel asymmetries and attainable sets %J ESAIM: Control, Optimisation and Calculus of Variations %D 2017 %P 869-887 %V 23 %N 3 %I EDP-Sciences %U http://archive.numdam.org/articles/10.1051/cocv/2016017/ %R 10.1051/cocv/2016017 %G en %F COCV_2017__23_3_869_0