@article{COCV_2020__26_1_A111_0, author = {Paoli, Gloria and Piscitelli, Gianpaolo and Trani, Leonardo}, title = {Sharp estimates for the first $p${\protect\emph{}-Laplacian} eigenvalue and for the $p$\protect\emph{}-torsional rigidity on convex sets with holes}, journal = {ESAIM: Control, Optimisation and Calculus of Variations}, publisher = {EDP-Sciences}, volume = {26}, year = {2020}, doi = {10.1051/cocv/2020033}, mrnumber = {4185065}, zbl = {1460.35179}, language = {en}, url = {http://www.numdam.org/articles/10.1051/cocv/2020033/} }