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Abstract

This paper considers the stability of the Korteweg-de Vries solitary wave solution with respect to infinitesmal disturbance. It is found that the Korteweg-de Vries solitary wave solution is unstable in the Liapunov sense.

Key words  Korteweg-de Vries solitary wave solution - unstable - infinitesmal disturbance - Liapunov direct method

Communicated by Chien Wei-zang

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