Lyapunov exponent for discrete and continuous dynamic systems are investigated, and an effective criteria for determining chaos based on computing the largest Lyapunov exponent using variation method is proposed. 研究了离散动力系统和连续动力系统的Lyapunov指数,提出了定量识别混沌的新方法:计算最大Lvapunov指数的变分法,为判定混沌是否存在提供了有效方法。
The catalytic activity of the carbonyl compound catalyzed by acids and bases had been investigated by self consistent charge discrete variation ( SCC DV X α) method and homogeneous kinetics measurements. 应用电荷自洽离散变分Xα方法(SCCDVXα)和动力学实验,研究了酸碱催化剂对羰基化合物离子型反应的催化活性。
The Momentum Profiles of Several Atoms Calculated by Discrete Variation Method 用离散变分方法计算几种原子的电子动量谱
And this is the initial particle shape. ( 2) By discrete spatial variation method, we studied the deformation behavior of the model in the force field, stretching and compression were included. 利用对Helfrich模型的离散空间变分,在力场中对囊泡进行形变研究,包括拉伸和压缩研究。