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math.AP2001
Semiclassical limit for nonlinear Schroedinger equations with electromagnetic fields
S. Cingolani, S. Secchi
We prove some multiplicity results by means of a perturbation technique in critical point theory.
math.AP2000
A Note on Closed Geodesics for a Class of non-compact Riemannian Manifolds
Simone Secchi
We prove the existence of multiple closed geodesics on non-compact cylindrica manifolds.