Homotopy classification of maps between r-1 connected 2r dimensional manifolds

来源 :中国科学A辑(英文版) | 被引量 : 0次 | 上传用户:zhaoshi88
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
In this paper, we study the homotopy classification of continuous maps between two r - 1 connected 2r dimensional topological manifolds M, N. If we assume some knowledge on the homotopy groups of spheres, then the complete classification can be obtained from the homotopy invariants of M, N. We design an algorithm and compose a program to give explicit computations.
其他文献
Choquet integral based on fuzzy measure is a very popular data fusion approach. A major problem in applying the Choquet integral is how to determine a large num
针对线性函数拟合的情况构造了一种无偏的因子化形式的χ2估计量,用以处理关联数据的极小化.详细比较并说明了有偏性与无偏性χ2拟合的区别.利用简化的R值测量数据对相关的结
Receptor-like kinase participates in the early events of plant signal transduction pathways. Previously, we screened the receptor-like kinase genes in rice and
In this study, we present the nonlinear interactions between gravity waves (GWs) and tides by using the 2D numerical model for the nonlinear propagation of GWs
在相对论平均场框架下,根据夸克介子耦合模型思想引入密度相关的标量耦合系数gNσ ,计算了密度相关耦合系数下,核物质标量密度、五夸克重子态(θ) +有效质量随核物质密度的变
Let G be a finite connected simple graph with a vertex set V(G) and an edge set E(G).A total signed domination function of G is a function f: V(G) ∪ E(G) → {-
Brassica napus (cv. Madrigal) seedlings pre-treated with ascospores of Leptosphaeria biglobosa or foliar sprays of either acibenzolar-S-methyl (ASM) or menadion
The described stone artifacts are recovered from the 70 m-high terrace (4600 m a.s.l.) at the southeastern shore of the Siling Co on the northern Tibetan Platea
Rapid growth behavior of ζ phase has been investigated in the undercooling experiments of Cu-14%Ge, Cu-15%Ge, Cu-18.5%Ge and Cu-22%Ge alloys. Alloys of the fou
为计算医用加速器中束流经过270°偏转磁铁系统电子损失所造成的辐射剂量问题,将束流传输相应的计算公式和蒙特卡罗抽样方法相结合,在一阶近似条件下计算了电子在偏转系统中