Berwald-moor metrics and structural stability of conformally-deformed geodesic SODE.
Best simultaneous diophantine approximations of some cubic algebraic numbers
Let be a real algebraic number of degree over whose conjugates are not real. There exists an unit of the ring of integer of for which it is possible to describe the set of all best approximation vectors of .’
Beta-expansions with negative bases.
Beta-numbers whose conjugates lie near the unit circle
Bethe ansatz, inverse scattering transform and tropical Riemann theta function in a periodic soliton cellular automaton for .
Bethe ansatz solutions to quasi exactly solvable difference equations.
Bidifferential calculus approach to AKNS hierarchies and their solutions.
Bifurcation analysis for a delayed predator-prey system with stage structure.
Bifurcation analysis of a van der Pol-Duffing circuit with parallel resistor.
Bifurcation analysis of the Hénon map.
Bifurcation and stability of families of hyperbolic vector fields in dimension three
Bifurcation de cycles limites au voisinage de polycycles hyperboliques et génériques à trois sommets
Bifurcation diagrams and Fomenko’s surgery on Liouville tori of the Kolossoff potential
Bifurcation d'orbites homoclines pour les systèmes hamiltoniens
Bifurcation d'orbites périodiques d'un système hamiltonien au voisinage d'une position d'équilibre
Bifurcation for second-order Hamiltonian systems with periodic boundary conditions.
Bifurcation from relative equilibria of noncompact group actions: Skew products, meanders, and drifts.
Bifurcation of an invariant torus of a system of differential equations in the degenerate case.
Bifurcation of contracting singular cycles
Bifurcation of free vibrations for completely resonant wave equations
We prove existence of small amplitude, 2p/v-periodic in time solutions of completely resonant nonlinear wave equations with Dirichlet boundary conditions for any frequency belonging to a Cantor-like set of positive measure and for a generic set of nonlinearities. The proof relies on a suitable Lyapunov-Schmidt decomposition and a variant of the Nash-Moser Implicit Function Theorem.