In order to obtain the solutions to this system , uniform design is introduced to choose the initial points . then based on these points decompose the admitted region into finite subregions , in which an improved hooke - jeeves algorithm is constructed to solve the subproblems 为了求解此系统，以均匀设计方法选初始点，并依此把允许区域分解为有限多个子域，在每个子域上构造了改进的hooke - jeeves优化算法。
For the delay - dependent stability , a critical delay formula has been found . the delegate point method for determining the stability of subdivisions has been summarized and the gradient method for determining the instability of subdivisions has been put forward . 2 对于时滞相关稳定性，以d子域法为基础，获得了临界时滞对计算公式，总结了判断子域稳定性的代表点法，提出了主要用于判断子域不稳定的梯度法。
The fbc for connecting the subdomains on fictitious boundary is developed according to the actual field distribution in the waveguide to ensure the propagation of waves between adjacent subdomains . the relaxed algorithm is introduced to improve the iterative convergence 文中从实际场分布出发，在划分区域的虚拟边界上给出了连接子域的吸收虚拟边界条件，并通过引入松弛算法，构建了一种能够用于分析波导问题的松弛迭代区域分解法。
