Discrete Picone inequalities and applications to non local and non homogenenous operators
Jacques Giacomoni, Abdelhamid Gouasmia and Abdelhafid Mokrane
Avaliable on line at link.springer.com/article/10.1007/s13398-022-01241-5
Multiple solutions for superlinear double phase Neumann problems
Nikolaos S. Papageorgiou, Vicenţiu D. Rădulescu and Youpei Zhang
Avaliable on line at link.springer.com/article/10.1007/s13398-021-01164-7