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In a long paper entitled Analysis Situs , Poincar茅 [1895] introduces the concept of the fundamental group of a topological space. He begins with a heuristic introduction, using functions F i ( i = 1,...,位) (not necessarily single valued) on a manifold defined by equations between ...
fundamental group of a topological space 拓扑空间的基本群 www.mapeng.net 3. The Fundamental Group of Open Manifolds with Nonnegative Ricci Curvature 具有非负Ricci曲率的开流形的基本群 www.ilib.cn 4. On the Non-commutativity of Fundamental Group 关于基本群的非交换性 www.ilib.cn 5. The Fundamen...
irreducible topological space 不可约拓扑空间【沂曰州bleto州哈口I明ce;HenP“BO-皿Moe功no加r“tlecICOe nPocTP,cTBOI 不能表作两个真闭子集之并集的拓扑空间(topolo-百以lspace).不可约拓扑空间也可以等价地定义为:它的任意开子集都是连通的或任意非空开子集都是处处稠密的.不可约拓扑空间在连续映射下...
摘要: The purpose of this paper is to introduce an important concept of fuzzy algebraic topology - the fundamental group of a fuzzy topological space, and to show that it is a fuzzy topological invariant.关键词: Job Satisfaction Social Behavior Physical Therapy Modalities Mentors Employee ...
Group Defn. 1(First definitionof group): We define a binary operation\circcalled multiplication on a nonempty setG, and(G,\circ)is called agroupif (note that we abbreviatea\circ basab) (1) the multiplication is closed onG; (2) associativity:a (bc)=(a b) c\text{ }\forall a,b,c...
The quasitopological fundamental group \\(\\pi _{1}^{qtop}(X,x_0)\\) is the fundamental group endowed with the natural quotient topology inherited from the space of based loops and is typically non-discrete when \\(X\\) does not admit a traditional universal cover. This topologized ...
second fundamental form of a surface曲面的第二基本形式 vitiated by a fundamental flaw【法】 根本无效的缺陷 fundamental group of a topological space拓扑空间的基本群 the fundamentaln.本 circular point on a surface曲面上的虚圆点 binode of a surface二切面重点 ...
For a totally path-disconnected, Hausdorff, unbased space $X$, we compute the topological fundamental group of the "hoop earring" space of $X$, which is the reduced suspension of $X$ with disjoint basepoint. We do so by factorizing the quotient map $\\\Omega(\\\Sigma X_{+},x)o ...
fundamental group of a topological space 拓扑空间的基本群 the fundamental n.本 vitiated expired air 污浊排泄气 vitiated air 污浊空气 discrete flaw 分散性疵点 Griffith flaw 格里菲斯微裂纹 tragic flaw 悲剧性的缺陷 相似单词 flaw n.[C] 1.(物体或材料的)裂纹或缺陷,瑕疵 2.错误,缺点 3.(...