Data di Pubblicazione:
2007
Citazione:
Compact solitary waves in linearly elastic chains with non-smooth on-site potential / G. Gaeta, T. Gramchev, S. Walcher. - In: JOURNAL OF PHYSICS. A, MATHEMATICAL AND THEORETICAL. - ISSN 1751-8113. - 40:17(2007), pp. 4493-4509.
Abstract:
It was recently observed by Saccomandi and Sgura that one-dimensional chains with nonlinear elastic interaction and regular on-site potential can support compact solitary waves, i.e. travelling solitary waves with strictly compact
support. In this paper, we show that the same applies to chains with linear elastic interaction and an on-site potential which is continuous but non-smooth at minima. Some different features arise; in particular, the speed of compact
solitary waves is not uniquely fixed by the equation. We also discuss several generalizations of our findings.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Solitons ; compactons ; nonlinear dynamics
Elenco autori:
G. Gaeta, T. Gramchev, S. Walcher
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