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Vestnik Tomskogo Gosudarstvennogo Universiteta. Matematika i Mekhanika, 2014, Number 4(30), Pages 43–48
(Mi vtgu403)
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This article is cited in 1 scientific paper (total in 1 paper)
MATHEMATICS
Linear homeomorphisms of topological almost modules of continuous functions and coincidence of dimension
A. V. Titova Tomsk State University, Tomsk, Russian Federation
Abstract:
In this paper, the space of continuous functions $C_p(X,G)$, where $G$ is a topological space, is considered. If the set $G$ is endowed with an almost ring structure, the set $C_p(X,G)$ is a topological almost module. It is proved that the dimension $dim$ of the topological space $X$ is an isomorphic invariant of its topological almost module $C_p(X,I)$, where $I=[0,1)$ is a naturally defined almost ring.
This statement is based on ideas of G. G. Pestov’s work «The coincidence of dimension $dim$ of $l$-equivalent topological spaces», where the following theorem was formulated: if $C_p(X,\mathbf{R})$ and $C_p(Y,\mathbf{R})$ are linearly homeomorphic spaces, then $dim\, X = dim\, Y$. Here, $X$ and $Y$ are arbitrary totally regular spaces, and $C_p(X,\mathbf{R})$ is the space of all continuous real functions on $X$ with the pointwise convergence topology. Note that Pestov’s theorem was generalized to the case of uniform homeomorphisms by S. P. Gul'ko.
Keywords:
almost ring, topological almost module, continuous homomorphism, space of continuous functions, pointwise convergence topology.
Received: 15.05.2014
Citation:
A. V. Titova, “Linear homeomorphisms of topological almost modules of continuous functions and coincidence of dimension”, Vestn. Tomsk. Gos. Univ. Mat. Mekh., 2014, no. 4(30), 43–48
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https://www.mathnet.ru/eng/vtgu403 https://www.mathnet.ru/eng/vtgu/y2014/i4/p43
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