×

(Non)connectedness and (non)homogeneity. (English) Zbl 1311.54004

A topological space \(X\) is homogeneous if for all \(x,y\in X\) there exists a homeomorphism \(f: X\to X\) such that \(f(x)=y\). In this paper the authors study among other things the class \(\mathcal A\) of compacta that are a continuous image of a homogeneous compactum. It is unknown whether \(\mathcal A\) coincides with the class of all compacta. It is known that all compact metric spaces belong to \(\mathcal A\). Under the Continuum Hypothesis, even all compact first-countable spaces belong to \(\mathcal A\). But so far, no example of a compact homogeneous space with cellularity greater than the continuum is known. The authors obtain several result on (non)homogeneity of products using points of local connectedness (or local contractibility) and components of path connectedness and pose some interesting problems.

MSC:

54B10 Product spaces in general topology
54D05 Connected and locally connected spaces (general aspects)
Full Text: DOI

References:

[1] Arhangel’skii, A. V., Cellularity structures and homogeneity, Math. Notes, 37, 4, 580-586 (1985) · Zbl 0613.54021
[2] Arhangel’skii, A. V., Topological homogeneity. Topological groups and their continuous images, Usp. Mat. Nauk, 42, 2(254), 69-105 (1987), (Russian) · Zbl 0642.54017
[3] Arhangel’skii, A. V.; van Mill, J., Topological homogeneity, (Recent Progress in General Topology III (2014)), 1-68 · Zbl 1323.54001
[4] Belnov, V. K., The dimension of topologically homogeneous spaces and free homogeneous spaces, Dokl. Akad. Nauk SSSR, 238, 4, 781-784 (1978), (Russian)
[5] Borsuk, K., Theory of Retracts (1967), PWN: PWN Warsaw · Zbl 0153.52905
[6] Chatyrko, V. A., Snakelike compacta, Vestn. Mosk. Univ., Ser. I, Mat. Mekh., 4, 15-18 (1984), (Russian)
[7] Dow, A.; Pearl, E., Homogeneity in powers of zero-dimensional first-countable spaces, Proc. Am. Math. Soc., 125, 2503-2510 (1997) · Zbl 0963.54002
[8] Engelking, R., General Topology (1989), Heldermann Verlag: Heldermann Verlag Berlin · Zbl 0684.54001
[9] Hatcher, A., Algebraic Topology (2002), Cambridge University Press: Cambridge University Press Cambridge · Zbl 1044.55001
[10] Ivanov, A. V., Zero-dimensional prototypes of bicompacta with a first axiom of countability, Usp. Mat. Nauk, 35, 6(216), 161-162 (1980), (Russian) · Zbl 0458.54021
[11] Keller, O. H., Die Homoiomorphie der kompakten konvexen Mengen in Hilbertschen Raum, Math. Ann., 105, 748-758 (1931) · JFM 57.1523.01
[12] Kuratowski, K., Topology, vol. 2 (1968), Academic Press: Academic Press New York and London
[13] Motorov, D. B., On retracts of homogeneous bicompacta, Vestn. MGU, 1, 5 (1985)
[14] Motorov, D. B., Zero-dimensional and linearly ordered compact spaces: properties of homogeneity type, Usp. Mat. Nauk, 44, 6(270), 159-160 (1989), (Russian) · Zbl 0712.54023
[15] Okromeshko, N. G., Retractions of homogeneous spaces, Dokl. Akad. Nauk SSSR, 268, 3, 548-551 (1983) · Zbl 0532.54011
[16] Watson, S., Construction of topological spaces, Planks and resolutions, (Husek, M.; van Mill, J., Recent Progress in General Topology (1992), North-Holland), 673-757 · Zbl 0803.54001
This reference list is based on information provided by the publisher or from digital mathematics libraries. Its items are heuristically matched to zbMATH identifiers and may contain data conversion errors. In some cases that data have been complemented/enhanced by data from zbMATH Open. This attempts to reflect the references listed in the original paper as accurately as possible without claiming completeness or a perfect matching.