extensions;
pseudoextensions;
cohomology of categories;
crossed module;
quadratic module;
algebraic models of homotopies;
D O I:
10.1007/BF00536609
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
Let n + k > n greater than or equal to 2. We consider algebraic models of the homotopy category of CW-complexes with cells only in dimension n and n + k. The algebraic model category is described in terms of non-Abelian extensions in Ext(2).
机构:
Xinyang Normal Univ, Dept Math, Xinyang 464000, Henan, Peoples R ChinaXinyang Normal Univ, Dept Math, Xinyang 464000, Henan, Peoples R China
Liu, Jiefeng
Sheng, Yunhe
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机构:
Xinyang Normal Univ, Dept Math, Xinyang 464000, Henan, Peoples R China
Jilin Univ, Dept Math, Changchun, Jilin, Peoples R ChinaXinyang Normal Univ, Dept Math, Xinyang 464000, Henan, Peoples R China
Sheng, Yunhe
Wang, Qi
论文数: 0引用数: 0
h-index: 0
机构:
Jilin Univ, Dept Math, Changchun, Jilin, Peoples R ChinaXinyang Normal Univ, Dept Math, Xinyang 464000, Henan, Peoples R China