A new coercivity condition applied to semipositone integral equations with nonpositive, unbounded nonlinearities and applications to nonlocal BVPs
The author investigates the existence of positive solutions for a semipositone perturbed Hammerstein integral equation. As application, he shopws the existence of at least one positive solution for various boundary value problems both in the ODEs context as well as for elliptic PDEs.
scientific article; zbMATH DE number 6821153
scientific article