On shape loop spaces

被引:0
|
作者
Nasri, Tayyebe [1 ]
Mashayekhy, Behrooz [2 ]
机构
[1] Univ Bojnord, Fac Basic Sci, Dept Pure Math, Bojnord, Iran
[2] Ferdowsi Univ Mashhad, Ctr Excellence Anal Algebra Struct, Dept Pure Math, POB 1159-91775, Mashhad, Razavi Khorasan, Iran
关键词
Shape theory; Shape group; Topological group; Loop space; Inverse limit;
D O I
10.1016/j.topol.2019.04.011
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
In this paper, considering the kth shape loop space (Omega) over cap (p)(k) (X, x), for an HPol(*)-expansion p : (X, x) -> ((X-lambda , x(lambda)), [p'], A) of a pointed topological space (X, x), first we show that (Omega) over cap (p)(k) (X, x) is an H-group for every topological space (X, x). Then we prove that Omega(c)(k) : Top(*) -> Top(*) is a functor, for all k is an element of N-0, where c is the tech HPol.-expansion of spaces. Moreover, with some assumptions, we show that if X is pi(k)-shape injective, then X is k-homotopically Hausdorff. Finally, we show that the long exact sequence of shape groups (coarse shape groups) of a pointed pair of certain spaces, is also exact as topological groups. (C) 2019 Elsevier B.V. All rights reserved.
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页码:29 / 38
页数:10
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