Non-collision orbits for a class of keplerian-like potentials
Non-collision solutions for a second order singular hamiltonian system with weak force
Nonlinear dynamics systems - bifurcations, continuation methods, periodic solutions
Non-smooth variational bifurcation
We consider bifurcation problems associated with some lower semicontinuous functionals that do not satisfy the usual regularity assumptions. For such functionals it is possible to define a generalized "Hessian form" and to show that certain eigenvalues of this one are bifurcation values. The results are applied to a bifurcation problem for elliptic variational inequalities.
Normal forms and bifurcations of some equivariant vector fields
Note on a local invertibility