5 papers
A Poincaré-Birkhoff theorem for multivalued successor maps with applications to periodic superlinear Hamiltonian systems
Guglielmo Feltrin, Alessandro Fonda, Andrea Sfecci
We provide a new version of the Poincaré-Birkhoff theorem for possibly multivalued successor maps associated with planar non-autonomous Hamiltonian systems. As an application, we p…
Double resonance in Sturm-Liouville planar boundary value problems
Andrea Sfecci
We provide some existence results for Sturm-Liouville boundary value problems associated with the planar differential system where g is suitably controlle…
On the structure of radial solutions for some quasilinear elliptic equations
Andrea Sfecci
In this paper we study entire radial solutions for the quasilinear -Laplace equation where is a radial positive weight and the nonlinearity behaves e…
Entire solutions of superlinear problems with indefinite weights and Hardy potentials
Matteo Franca, Andrea Sfecci
We provide the structure of regular/singular fast/slow decay radially symmetric solutions for a class of superlinear elliptic equations with an in- definite weight on the nonlinear…
On a diffusion model with absorption and production
Matteo Franca, Andrea Sfecci
We discuss the structure of radial solutions of some superlinear elliptic equations which model diffusion phenomena when both absorption and production are present. We focus our at…