@article{urn:eudml:doc:42272, title = {Estimates for the first eigenfunction of linear eigenvalue problems via Steiner symmetrization.}, journal = {Publicacions Matem\`atiques}, volume = {53}, year = {2009}, pages = {47-71}, zbl = {1173.35089}, language = {en}, url = {http://dml.mathdoc.fr/item/urn:eudml:doc:42272} }
Chiacchio, F. Estimates for the first eigenfunction of linear eigenvalue problems via Steiner symmetrization.. Publicacions Matemàtiques, Tome 53 (2009) pp. 47-71. http://gdmltest.u-ga.fr/item/urn:eudml:doc:42272/