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Higher-order asymptotics of decaying solutions of some nonlinear, dispersive, dissipative wave equations

J L Bona, K S Promislow and C E Wayne

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Considered herein are the generalized Korteweg-de Vries equations with a homogeneous dissipative term appended. Solutions of these equations that start with finite energy decay to zero as time tends toward infinity. We present an asymptotic form which renders explicit the relative strengths of the dissipative, dispersive, and nonlinear effects in this decay.


PACS

02.30.Jr Partial differential equations

MSC

41A60 Asymptotic approximations, asymptotic expansions (steepest descent, etc.) (See also 30E15)

35Q53 KdV-like equations (Korteweg-de Vries, Burgers, sine-Gordon, sinh-Gordon, etc.) (See also 37K10)

Subjects

Mathematical physics

Dates

Issue 6 (November 1995)



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