9 citations · 33 across the 7 of their papers we have counts for
7 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…
Double resonance for one-sided superlinear or singular nonlinearities
Andrea Sfecci
We deal with the problem of existence of periodic solutions for the scalar differential equation x" + f (t, x) = 0 when the asymmetric nonlinearity satisfies a one-sided superlinea…
Periodic impact motions at resonance of a particle bouncing on spheres and cylinders
Andrea Sfecci
We investigate the existence of periodic trajectories of a particle, subject to a central force, which can hit a sphere, or a cylinder. We will provide also a Landesman-Lazer type…