Remarks on inhomogeneous elliptic problems arising in astrophysics.
Multiple solutions for inhomogeneous nonlinear elliptic problems arising in astrophyscs.
A discontinuous problem with quasilinear operator.
Multivalued nonpositone problems
In this note, the existence of non-negative solutions for some multivalued non-positone elliptic problems is studied.
Global branching for discontinuous problems
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