Publisher： Cambridge University Press
E-ISSN： 1446-8735|56|3|275-285
ISSN： 1446-1811
Source： ANZIAM Journal, Vol.56, Iss.3, 2015-01, pp. : 275-285
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Abstract
We compare six fixed-stepsize fourth-order numerical methods for a number of test problems described by a system of coupled Korteweg–de Vries equations. Particular attention is paid to the ability of these methods to preserve fixed points (solitary waves) and the invariants of the system, and establishing to what extent the conservation of integral invariants is indicative of the solution error for these methods.
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