1,721,222 research outputs found
Homoclinics and complex dynamics in slowly oscillating systems
No full textWe prove the existence of multibump homoclinic orbits to an hyperbolic equilibrium of a Lagrangian systems with a slowly oscillating forcing term. The approach is based on a variational Lyapunov-Schmidt reduction
Diffusion quantum monte carlo study of argon dimer
No full textWe reproduce the binding energy curve of a prototypical van derWaals system, namely the Ar dimer, by a fixed node-diffusion quantum Monte Carlo approach. The results, in good agreement with the experimental values and the best reference potential-energy curve, are compared with those obtained by density functional theory (DFT) using different local, semilocal, and van der Waals-corrected functionals. A differential-density analysis is also reported, which describes how the electron density redistributes as a consequence of the interaction between the Ar atoms and highlights significant differences among the different approaches and possible shortcomings of DFT methods in accurately describing the electron density distribution
Applications of Critical Point Theory to Homoclinics and Complex Dynamics
No full textIn this note we outline some recent results on the existence of homoclinics and complex dynamics of some perturbed differential equations. These results are based upon a perturbation method in critical point theor
Applications of Critical Point Theory to Homoclinics and Complex Dynamics
No full textIn this note we outline some recent results on the existence of homoclinics and complex dynamics of some perturbed differential equations. These results are based upon a perturbation method in critical point theor
Periodic solutions with prescribed energy for a class of Keplerian N-body problem
No full textThe paper deals with the existence of periodic solutions of fixed energy for a class of N-body type problems with Keplerian like interaction
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