For a path-connected space X, a well-known theorem of Segal, May and Milgram asserts that the configuration space of finite points in ℝn with labels in X is weakly homotopy equivalent to ΩnΣnX. In this paper, we introduce a space ℐn(X) of intervals suitably topologized in ℝn with labels in a space X and show that it is weakly homotopy equivalent to ΩnΣnX without the assumption on path-connectivity.
Okuyama, Shingo  1
@article{10_2140_agt_2005_5_1555,
author = {Okuyama, Shingo},
title = {The space of intervals in a {Euclidean} space},
journal = {Algebraic and Geometric Topology},
pages = {1555--1572},
year = {2005},
volume = {5},
number = {4},
doi = {10.2140/agt.2005.5.1555},
url = {http://geodesic.mathdoc.fr/articles/10.2140/agt.2005.5.1555/}
}
Okuyama, Shingo. The space of intervals in a Euclidean space. Algebraic and Geometric Topology, Tome 5 (2005) no. 4, pp. 1555-1572. doi: 10.2140/agt.2005.5.1555
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