一类条件极值判定的拉格朗日方法
The Lagrangian Method to a Class of Conditional Extremum Problems

研究了多元函数条件极值的充分条件与判定方法，建立了可行集$\mathscr{M}$与变分空间V(P₀)上的点之间的联系.利用二者间关键的误差估计，给出了条件极值判定定理的简化证明.
In this paper, the sufficient conditions and determination method of the conditional extremum of multivariate functions are studies, and a connection is established between the points on the feasible set $\mathscr{M}$ and the variational set V(P₀). By a critical error estimate of the two sets, the proof of the conditional extremum theorem is remarkably simplified