The G-sequence and the ω-homology of a CW-pair

The G-sequence and the ω-homology of a CW-pair
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G 序列和 CW 对的 ω 同源性

DOI:
10.1016/0166-8641(93)90104-l
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发表时间:
1993
影响因子:
0.6
通讯作者:
M. Woo
M. Woo
中科院分区:
数学4区
文献类型:
--
作者:
Keean Lee;M. Woo

文献摘要

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引入了由CW-对的同伦序列中同伦群的赋值子群组成的g-序列,并给出了g-序列是精确的一些条件。也就是说,如果包含i:a→X同伦于一个常量映射或有一个左同伦逆,则(X,A)的g-序列是精确的。我们还证明了非正则G-序列的存在性,并引入了由CW-对的G-序列定义的ω-同调和CW-三元组的ω-同调。
We introduce theG-sequences which consist of the evaluation subgroups of the homotopy groups in the homotopy sequence of a CW-pair and give some conditions for theG-sequences to be exact. That is, if the inclusioni:A→Xis homotopic to a constant map or has a left homotopy inverse, then theG-sequence of (X,A) is exact. We also show the existence of a nonexactG-sequence and introduce the ω-homology defined by theG-sequence of a CW-pair and the ω-homology of a CW-triple.