
作者:吴文俊
页数:312
出版社:清华同方光盘电子出版社
ISBN:9787508855585
电子书格式:pdf/epub/txt
内容简介
本卷收录了吴文俊的ATheoryofImbedding,Immersion,andIsotopyofPolytopesinaEuclideanSpace一书.一个空间嵌入另一空间(例如欧氏空间)是否可能以及这些嵌入所依据的同痕的分类问题,已成为拓扑学中重要的中心问题之一,也是许多拓扑学家从各种不同角度用各种不同方法研究的对象之一.本书是作者从1954年以来在这方面研究工作的一个总结报告,它的方法在于研究空间的去核p重积,即将p重积除去对角以后所余的空间,这一概念可追溯到VanKampen早在1932年的一篇重要论文.其次再应用P.A.Smith有关周期变换的理论以获得若干作为Smith特殊群中上类的不变量,它们之为0是嵌入的必要条件而在某些极端情形又同时为充分条件.关于嵌入的许多已知结果以及一些新的结果,虽有着种种不同的来源,都可用这一统一的方法得出.浸入与同痕也可用同样办法处理并得出相应的类似结果。
目录
2 (233)
§5 The main theorem for immersion-necessary and sufficient condition for Kn最R2n-1 n>3 (239)
§6 The main theorem for isotopy-necessary and sufficient conditions for f,g: Kn最R2n+1,n>1 to be isotopic (243)
CHAPTER VII IMBEDDING IMMERSION AND ISOTOPY OF MANIFOLDS IN A EUCLIDEAN SPACE (252)
§1 Periodic transformations in combinatorial manifolds (252)
§2 Sufficiency theorems for combinatorial manifolds (255)
§3 Imbedding of a combinatorial manifold (259)
§4 Immersion of a combinatorial manifold (266)
§5 An extension of the general theory in the case of differential manifolds (274)
Bibliographical Notes (283)
Bibliography (288)
§5 The main theorem for immersion-necessary and sufficient condition for Kn最R2n-1 n>3 (239)
§6 The main theorem for isotopy-necessary and sufficient conditions for f,g: Kn最R2n+1,n>1 to be isotopic (243)
CHAPTER VII IMBEDDING IMMERSION AND ISOTOPY OF MANIFOLDS IN A EUCLIDEAN SPACE (252)
§1 Periodic transformations in combinatorial manifolds (252)
§2 Sufficiency theorems for combinatorial manifolds (255)
§3 Imbedding of a combinatorial manifold (259)
§4 Immersion of a combinatorial manifold (266)
§5 An extension of the general theory in the case of differential manifolds (274)
Bibliographical Notes (283)
Bibliography (288)















