Differential Equations & Applications · Volume 8, Issue 3 On nonlinear perturbations of Sturm-Liouville problems in discrete and continuous settings 08-16 Pages 319-334 DOI 10.7153/dea-08-16 Downloads Short PDF Full PDF PNG Authors Jesús Rodríguez Adam J. Suarez Keywords Sturm-Liouville problems ordinary differential equations difference equations nonlinear equations Subject classes 34B24 34L30 39A12 39A99 47H09 47H10