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双重复形法及其在唯象核力研究中的应用
A DOUBLE COMPLEX ALGORITHM AND ITS APPLICATION IN RESEARCH OF THE PHENOMENOLOGICAL NUCLEAR FORCE
【摘要】 <正> 一、引言 在唯象核力研究中,需要进行优化的目标函数是由二体和三体方程联合起来的函数,函数关系十分复杂,计算量很大,进行优化是非常困难的。 复形法是求解非线性规化的常用算法,思想清晰,程序简单,不需要计算导数,多数情况下收敛速度较快,能得到比较满意的结果。对有约束问题更为适宜。对于我们的优化问题,采用复形法是比较恰当的。 但是,采用复形法进行优化仍然存在计算时间太长的突出问题。为了大幅度地减少
【Abstract】 A new method, the double complex algorithm, is presented in this paper to solve the con-strained nonlinear optimization. The united objective function of two-and three-body systems isoptimized with this method and a satisfactory result is obtained. The computation time is sho-rter with this method than with general complex algorithms. The double complex algorithm is suitable for the objective functions which can be expres-sed by the sum of functions with all or partial adjustable parameters and whose computationrun time with all parameters is much longer than that with partial parameters.Key words: complex algorithm, double complex algorithm, optimization method, nonlinearoptimization.
- 【文献出处】 数值计算与计算机应用 ,Journal of Numerical Methods and Computer Applications , 编辑部邮箱 ,1990年04期
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