Data di Pubblicazione:
2010
Citazione:
Continuous approximation of breathers in one and two dimensional DNLS lattices / D. Bambusi, T. Penati. - In: NONLINEARITY. - ISSN 0951-7715. - 23:1(2010), pp. 143-157.
Abstract:
In this paper we construct and approximate breathers in the DNLS model starting from the continuous limit: such periodic solutions are obtained as perturbations of the ground state of the NLS model in , with n = 1, 2. In both the dimensions we recover the Sievers–Takeno and the Page (P) modes; furthermore, in also the two hybrid (H) modes are constructed. The proof is based on the interpolation of the lattice using the finite element method (FEM).
Tipologia IRIS:
01 - Articolo su periodico
Elenco autori:
D. Bambusi, T. Penati
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