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K8和K9图式流形的拓扑分类的下界
The low bounds of topological classes in K8 and K9 graphlike manifolds
【摘要】 利用图式流形的2个拓扑不变量,即伴随矩阵的特征多项式与积和式,分别得到了K8和K9图式流形的拓扑分类数的下界.如果改进算法,对于更大的自然数n,可以得到Kn图式流形的类似结果.
【Abstract】 The low bounds of topological classes in K8 and K9 graphlike manifolds were obtained by using the characteristic polynomial and the permanent of associated matrices.Results of other Kn graphlike manifolds for n>9 could be similarly derived through generalizing the presented algorithm.
【关键词】 图式流形;
伴随矩阵;
积和式;
特征多项式;
容许变换;
【Key words】 graphlike manifolds; associated matrices; permanent; characteristic polynomial; admissible transformation;
【Key words】 graphlike manifolds; associated matrices; permanent; characteristic polynomial; admissible transformation;
- 【文献出处】 浙江师范大学学报(自然科学版) ,Journal of Zhejiang Normal University(Natural Sciences) , 编辑部邮箱 ,2007年01期
- 【分类号】O189.2
- 【被引频次】2
- 【下载频次】29