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一类二维非线性Schrdinger方程大时间问题的Fourier谱方法(Ⅱ)
The Fourier spectral mehod for large time problem of a class of two-dimensional nonlinear Schrodinger equations (Ⅱ)
【摘要】 用Fourier谱方法讨论如下的非线性Schrodinger方程及其周期初值问题 ut-(λ十ia)Δu+(k+iβ)u2u+γu=f(x,t),u(x+2π,t),u(x,0)=u0(x) 构造了全离散的Fourier谱逼近格式,并证明了格式的大时间收敛性。
【Abstract】 The authors study the Fourier spectral method for large time problem of a class of two-dimensional nonlinear Schrodinger equations with periodic initial value conditions of following ut-(λ+ia)△u +(k +iβ)u2u +γu=f(x, t), u(x + 2π, t) = u(x, t), u(x, 0) = u0(x)。 A fully discrete Fourier spectral scheme is constructed, and the long time convergence of scheme is proved.
【关键词】 非线性Schrdingder方程;
Fourier谱方法;
大时间收敛;
【Key words】 the nonlinear Schrodinger equations; Fourier spectral method; long time convergence;
【Key words】 the nonlinear Schrodinger equations; Fourier spectral method; long time convergence;
【基金】 黑龙江省自然科学基金
- 【文献出处】 黑龙江大学自然科学学报 ,JOURNAL OF NATURAL SCIENCE OF HEILONGJIANG UNIVERSITY , 编辑部邮箱 ,2000年01期
- 【分类号】O242.21
- 【下载频次】51