首先，本文讨论了在军事领域得到广泛应用的多目标群决策的基数秩评定方法。
Firstly, this thesis discusses cardinal ranking method for the finite projects multiple objective group decision-making problem.
通过计算全测地子流形的基本群，确定了紧正规黎曼对称空间的极大的极大秩全测地子流形的整体分类。
In this paper, the authors give the globally classfication of the maximal totally geodesic submanifolds with maximal rank of normal Riemannian symmetric Spaces by computing the fundamental group.
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