isotopy相关论文
It is an important problem in topology to verify whether two embeddings are isotopic.This work proposes an algorithm for......
In this paper,we study the topology of moment-angle manifolds and prove a conjecture of S.Gitler and S.López de Medrano......
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本文主要研究两个分支的Brunian链环.对于一个2分支的Brunnian链环B2={l1,l2},我们先同痕移动它,使其中一个分支l1落在R3中的一个......
在转换合痕的基础上，提出拉丁方合痕不变量－特征数的概念，进而提出一种判别拉丁方合痕代表元的算法－特征数法，同时局部合痕的概念，侠拉丁......
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Objective. To improve the localized diagnosis of insidious recurrent small intestinal hemorrhage. Methods. This retrospe......
