针对指标-3型积分代数方程的数值解,研究其配置边值方法,基于插值多项式,利用未计算的近似值,通过将原方程进行离散化构造了指标-3型积分代数方程的配置边值方法,并分析了该方法的可解性和收敛性,证明了利用该方法求解指标-3型积分代数...针对指标-3型积分代数方程的数值解,研究其配置边值方法,基于插值多项式,利用未计算的近似值,通过将原方程进行离散化构造了指标-3型积分代数方程的配置边值方法,并分析了该方法的可解性和收敛性,证明了利用该方法求解指标-3型积分代数方程可达到较高收敛阶,最后通过数值实验验证了方法的有效性。Regarding the numerical solution of the index-3 integral algebraic equation, the collocation boundary value method was investigated. Based on the interpolation polynomial and the utilization of uncomputed approximate values, the collocation boundary value method for the index-3 integral algebraic equation was constructed by discretizing the original equation. The solvability and convergence of this method were analyzed. It was demonstrated that the application of this method in solving the index-3 integral algebraic equation can achieve a relatively high convergence order. Finally, the validity of the method was verified through numerical experiments.展开更多
A general Lie algebra Vs and the corresponding loop algebra Vx are constructed, from which the linear isospectral Lax pairs are established, whose compatibility presents the zero curvature equation. As its application...A general Lie algebra Vs and the corresponding loop algebra Vx are constructed, from which the linear isospectral Lax pairs are established, whose compatibility presents the zero curvature equation. As its application, a new Lax integrable hierarchy containing two parameters is worked out. It is not Liouville-integrable, however, its two reduced systems are Liouville-integrable, whose Hamiltonian structures are derived by making use of the quadratic-form identity and the γ formula （i.e. the computational formula on the constant γ appeared in the trace identity and the quadratic-form identity）.展开更多
文摘针对指标-3型积分代数方程的数值解,研究其配置边值方法,基于插值多项式,利用未计算的近似值,通过将原方程进行离散化构造了指标-3型积分代数方程的配置边值方法,并分析了该方法的可解性和收敛性,证明了利用该方法求解指标-3型积分代数方程可达到较高收敛阶,最后通过数值实验验证了方法的有效性。Regarding the numerical solution of the index-3 integral algebraic equation, the collocation boundary value method was investigated. Based on the interpolation polynomial and the utilization of uncomputed approximate values, the collocation boundary value method for the index-3 integral algebraic equation was constructed by discretizing the original equation. The solvability and convergence of this method were analyzed. It was demonstrated that the application of this method in solving the index-3 integral algebraic equation can achieve a relatively high convergence order. Finally, the validity of the method was verified through numerical experiments.
基金The project supported by National Natural Science Foundation of China under Grant No. 10471139
文摘A general Lie algebra Vs and the corresponding loop algebra Vx are constructed, from which the linear isospectral Lax pairs are established, whose compatibility presents the zero curvature equation. As its application, a new Lax integrable hierarchy containing two parameters is worked out. It is not Liouville-integrable, however, its two reduced systems are Liouville-integrable, whose Hamiltonian structures are derived by making use of the quadratic-form identity and the γ formula （i.e. the computational formula on the constant γ appeared in the trace identity and the quadratic-form identity）.
