The problem about how to determine the weak efficient solution of convex multiobjective programming is turned into a problem judge whether an equation has non-negative non-zero solution.
将弱有效解的判断问题转化为判断一线性方程组是否存在非负、非零解的问题。
The game of zero-sum tow-person and non-saddle-point has solution under the condition of the mixed strategy . However, the optimal mixed strategy cannot instruct the choice of lump-sum game approach.
二人零和无鞍点对策在混合策略意义下都有解，但最优混合策略解不能指导一次性对策方案的选择。
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