Abstract
<p>Let T = (<strong>T</strong>, ≤) and T<sub>1</sub>= (<strong>T</strong><sub>1</sub> , ≤<sub>1</sub>) be linearly ordered sets and X be a topological space. The main result of the paper is the following: If function ƒ(t,x) : <strong>T</strong> × X → <strong>T</strong><sub>1 </sub>is continuous in each variable (“t” and “x”) separately and function ƒ<sub>x</sub>(t) = ƒ(t,x) is monotonous on <strong>T</strong> for every x ∈ X, then ƒ is continuous mapping from<strong> T</strong> × X to <strong>T</strong><sub>1</sub>, where <strong>T</strong> and <strong>T</strong><sub>1</sub> are considered as topological spaces under the order topology and <strong>T</strong> × X is considered as topological space under the Tychonoff topology on the Cartesian product of topological spaces <strong>T</strong> and X.</p>
Publisher
Universitat Politecnica de Valencia
Reference9 articles.
1. G. Birkhoff, Lattice theory, Third edition. American Mathematical Society Colloquium Publications, Vol. XXV, American Mathematical Society, Providence, R.I., New York, 1967.
2. K. C. Ciesielski and D. Miller, A continuous tale on continuous and separately continuous functions, Real Analysis Exchange 41, no. 1 (2016), 19-54. https://doi.org/10.14321/realanalexch.41.1.0019
3. O. Karlova, V. Mykhaylyuk and O. Sobchuk, Diagonals of separately continuous functions and their analogs, Topology Appl. 160, no. 1 (2013), 1-8. https://doi.org/10.1016/j.topol.2012.09.003
4. J. L. Kelley, General topology, University series in higher mathematics, Van Nostrand, 1955.
5. R. L. Krusee and J. J. Deely, Joint continuity of monotonic functions, The American Mathematical Monthly 76, no. 1 (1969), 74-76. https://doi.org/10.1080/00029890.1969.12000144
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献