Estimates for the first eigenfunction of linear eigenvalue problems via Steiner symmetrization

F. Chiacchio
2009 Publicacions matemàtiques  
By means of Steiner symmetrization we get some estimates for the first eigenfunction of a class of linear problems, having as prototype the Laplacian with Dirichlet boundary conditions. 2000 Mathematics Subject Classification. 35J25, 35B05, 35P05.
doi:10.5565/publmat_53109_02 fatcat:4lrm4x2pg5h6vhcmvpqgldsiyy