A note on the backward error analysis for eigenvalue problems 關(guān)于矩陣特征值問題向后誤差分析的注記
Backward error analysis of a class of the periodic symplectic matrices for eigenproblem 一類周期辛矩陣對特征值問題的向后誤差分析
We get the perturbed system equivalent to the pseudo - symplectic numerical scheme by use of backward error analysis , and prove that this perturbed system is hamiltonian when truncating with less order than pseudo - symplectic order 利用向后誤差分析的方法,得出擬辛數(shù)值方法所對應(yīng)的擾動系統(tǒng),證明了此擾動系統(tǒng)在小于擬辛階的截斷時,是一hamilton系統(tǒng)。