Fundamentalgruppe fundamental group 基本群
algebraic fundamental group [数] 代数基本群
pcm fundamental group pcm基群
finitely generated fundamental group 基本群有限生成
the fundamental group of -manifold 维流形的基本群
the fundamental group of 3-manifold 维流形的基本群
task group on fundamental constants 基础定数作业部会
fundamental mode group 基本模态组
The main work of this paper is to study some questions with orbifold fundamental group and Chen-Ruan cohomology.
本文主要研究关于orbifold基本群与陈-阮上同调若干问题。
参考来源 - Orbifold基本群与陈阮上同调若干问题研究·2,447,543篇论文数据，部分数据来源于NoteExpress
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The family is the natural and fundamental group unit of society and is entitled to protection by society and the State.
家庭是天然的和基本的社会单元，并应受社会和国家的保护。
In this paper, we study the condition which makes the fundamental group of graph have every positive integer as the index of some normal subgroup.
本文主要研究图的基本群的正规子群的指数何时成为任意正整数的条件。
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.
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。
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