%0 Journal Article %A Lü, Qi %T A lower bound on local energy of partial sum of eigenfunctions for Laplace-Beltrami operators %J ESAIM: Control, Optimisation and Calculus of Variations %D 2013 %P 255-273 %V 19 %N 1 %I EDP-Sciences %U http://www.numdam.org/articles/10.1051/cocv/2012008/ %R 10.1051/cocv/2012008 %G en %F COCV_2013__19_1_255_0