Improved tanh-function method and the new exact solutions for the general variab le coefficient KdV equation and MKdV equation

Li De-Sheng; Zhang Hong-Qing

doi:10.7498/aps.52.1569

Abstract
In this paper, by using the extended tanh-function method,the general variable coefficient KdV and MKdV equations are reduced to first-order variable coefficient nonlinear ordinary differential equations,and then the new exact solutions for these equations,which include exact soliton-like,rational formal and triangle function solutions,are obtained through solving these ordinary differential equations-

Keywords:
improved tanh-function method /

soliton-like solutions /

rational form al solutions /

triangle function solutions

PACS:
Authors and contacts
Li De-Sheng²,

Zhang Hong-Qing¹

(1)大连理工大学应用数学系，大连 116024; (2)大连理工大学应用数学系，大连 116024;沈阳工业大学理学院，沈阳 110023
References

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Vol. 52, Issue 7 - 2003-04-05

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Improved tanh-function method and the new exact solutions for the general variab le coefficient KdV equation and MKdV equation

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Improved tanh-function method and the new exact solutions for the general variab le coefficient KdV equation and MKdV equation

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