The basic idea of the method is to approximate the solution of variational inequalities via solving alternately a linear variational inequality with simple constraints and a well-conditioned system of nonlinear equations . A remarkable merit of the alternating direction method is that it is easy to solve sub-problems .

这种算法的基本思想是通过交替地求解一个具有简单约束的线性变分不等式及一个 良 态的非线性方程组来逼近变分不等式问题的解。

This paper introduces cumulative GM Method a new method to estimate their parameter . Though practice we get the condition number of cumulative GM Method is litter commonly these models belong to well-conditioned model .

引入累积法GM模型-一种新颖的参数估计方法，研究表明累积法GM模型条件数一般都较小，属于 良 态模型。

The well-conditioned search direction in optimization techniques and its realization in method of nonlinear least squares

最优化技术中的 良 态搜索方向及其在非线性最小二乘法中的实现

A mixed formulation of interface problems is educed to lead to a well-conditioned and small scale system is .

给出了界面问题的混合 有限元提法，由 该 提法可导出 良 态、小规模的 有限 元方程组。