搜索结果: 1-6 共查到“代数学 KdV”相关记录6条 . 查询时间(0.031 秒)
The Hirota τ-function and well-posedness of the KdV equation with an arbitrary step like initial profile decaying on the right half line
Korteweg-de Vries equation inverse scattering transform Schr ¨odinger operator
2011/3/1
We are concerned with the Cauchy problem for the KdV equation on the whole line with an initial profile V0 which is decaying sufficiently fast at +¥ and arbitrarily enough (i.e., no decay or patte...
The supercritical generalized KdV equation: Global well-posedness in the energy space and below
supercritical generalized KdV equation Global well-posedness energy space and below
2010/12/8
We consider the generalized Korteweg-de Vries (gKdV) equation @tu + @3 xu + μ@x(uk+1) = 0, where k ≥ 5 is an integer number and μ = ±1.In the focusing case (μ = 1), we show that if the initial data u0...
提出变系数KdV-Burgers-Kuramoto(VCKdVBK)方程$u_t+f(x,t)uu_x+g(x,t)u_{xx}+h(x,t)u_{xxx}+k(x,t)u_{xxxx}=0$的容许变换, 它不改变方程的形式但可能改变方程的系数$f, g, h$及$k$.然后, 基于这个容许变换, 给出了VCKdVBK方程的7种不同类型的等价类. 最后, 也给出了VCKdVBK方程的Lie点对称群...
We construct and analyze a family of semi-discretized difference
schemes with two parameters for the Korteweg-de Vries (KdV) equation.
The scheme possesses the first four near-conserved quantities f...
In this paper, we present a new semi-discrete difference scheme for the KdV equation, which possesses the first four nearconserved quatities. The scheme is better than the past one given in [4], becau...