منابع مشابه
Global Well-posedness for Periodic Generalized Korteweg-de Vries Equation
In this paper, we show the global well-posedness for periodic gKdV equations in the space H(T), s ≥ 1 2 for quartic case, and s > 5 9 for quintic case. These improve the previous results of Colliander et al in 2004. In particular, the result is sharp in the quartic case.
متن کاملThe Generalized Korteweg-de Vries Equation on the Half Line
The initial-boundary value problem for the generalized Korteweg-de Vries equation on a half-line is studied by adapting the initial value techniques developed by Kenig, Ponce and Vega and Bourgain to the initial-boundary setting. The approach consists of replacing the initial-boundary problem by a forced initial value problem. The forcing is selected to satisfy the boundary condition by inverti...
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where μ, ν are positive constants. This equation, in the case μ = 0, was derived independently by Sivashinsky [1] and Kuramoto [2] with the purpose to model amplitude and phase expansion of pattern formations in different physical situations, for example, in the theory of a flame propagation in turbulent flows of gaseous combustible mixtures, see Sivashinsky [1], and in the theory of turbulence...
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We prove the instability of a “critical” solitary wave of the generalized Korteweg – de Vries equation, the one with the speed at the border between the stability and instability regions. The instability mechanism involved is “purely nonlinear”, in the sense that the linearization at a critical soliton does not have eigenvalues with positive real part. We prove that critical solitons correspond...
متن کاملAnalyticity of Solutions of the Generalized Korteweg-de Vries Equation with Respect to Their Initial Values
It is shown that the initial value problem (IVP) of the generalized KdV equation @tu + @x(a(u)) + @ 3 xu = 0; u(x; 0) = (x) is well posed in the classical Sobolev space H(R) with s > 3=4, which thus establishes a nonlinear map K from H(R) to C([ T; T ];H(R)). Then it is proved that (i) if a = a(x) is a C function on R to R, then K is in nitely many times Frechet di erentiable; (ii) if a = a(x) ...
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ژورنال
عنوان ژورنال: Nonlinear Analysis: Theory, Methods & Applications
سال: 2009
ISSN: 0362-546X
DOI: 10.1016/j.na.2009.02.062