It is shown that if a generalized symmetric system is controllable on a neighborhood of a point, then the system is controllable on some open set which includes the group action-orbit at the point.
文中证明了如果广义对称系统在一点的邻域可控，那么系统在包含该点群作用轨道的一个开集上是可控的。
Local dynamic linearization is applied to the system at each sampling point. Then control action is gained using generalized predictive control (GPC) based on the linearized model.
然后在每一个采样点对系统进行局部动态线性化，根据得到的系统线性化模型对系统采取广义预测控制（ GPC）方法得到当前的控制动作。
Since river channel patterns are the results of the combined action of the watershed factors, it is very difficult to solve its cause of formation with generalized mathematical or physical model.
鉴于河型是流域因素综合作用的产物，其成因要概化成数学物理模式求解是极其困难的。
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