Finite-to-one continuous $s$-covering mappings
Fundamenta Mathematicae, Tome 194 (2007) no. 1, pp. 89-93
Cet article a éte moissonné depuis la source Institute of Mathematics Polish Academy of Sciences
The following theorem is proved. Let $f: X \to Y$ be a finite-to-one map such that the restriction $f|f^{-1}(S)$ is an inductively perfect map for every countable compact set $S \subset Y$. Then $Y$ is a countable union of closed subsets $Y_i$ such that every restriction $f|f^{-1}(Y_i)$ is an inductively perfect map.
Keywords:
following theorem proved finite to one map restriction inductively perfect map every countable compact set subset countable union closed subsets every restriction inductively perfect map
Affiliations des auteurs :
Alexey Ostrovsky 1
@article{10_4064_fm194_1_5,
author = {Alexey Ostrovsky},
title = {Finite-to-one continuous $s$-covering mappings},
journal = {Fundamenta Mathematicae},
pages = {89--93},
year = {2007},
volume = {194},
number = {1},
doi = {10.4064/fm194-1-5},
language = {en},
url = {http://geodesic.mathdoc.fr/articles/10.4064/fm194-1-5/}
}
Alexey Ostrovsky. Finite-to-one continuous $s$-covering mappings. Fundamenta Mathematicae, Tome 194 (2007) no. 1, pp. 89-93. doi: 10.4064/fm194-1-5
Cité par Sources :