Geodesic
Points of openness of some mappings
Filomat, Tome 35 (2021) no. 15, p. 5209

Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

DOI

Let X and Y be topological spaces and f : X → Y be a continuous function. We are interested in finding points of X and Y at which f is open. We will show that if X is developable, the set of points of openness of f in X is a G δ subset of X. If X is developable and f is closed, then the set of points of openness of f in Y is a G δ subset of Y. These will extend some results of S. Levi
DOI : 10.2298/FIL2115209H
Classification : 54C10, 46T20
Keywords: Continuous function, open function, quasicontinuous function, closed function, developable space 
Ĺubica Holá; Alireza Kamel Mirmostafaee. Points of openness of some mappings. Filomat, Tome 35 (2021) no. 15, p. 5209 . doi: 10.2298/FIL2115209H
@article{10_2298_FIL2115209H,
     author = {\'Lubica Hol\'a and Alireza Kamel Mirmostafaee},
     title = {Points of openness of some mappings},
     journal = {Filomat},
     pages = {5209 },
     year = {2021},
     volume = {35},
     number = {15},
     doi = {10.2298/FIL2115209H},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.2298/FIL2115209H/}
}
TY  - JOUR
AU  - Ĺubica Holá
AU  - Alireza Kamel Mirmostafaee
TI  - Points of openness of some mappings
JO  - Filomat
PY  - 2021
SP  - 5209 
VL  - 35
IS  - 15
UR  - http://geodesic.mathdoc.fr/articles/10.2298/FIL2115209H/
DO  - 10.2298/FIL2115209H
LA  - en
ID  - 10_2298_FIL2115209H
ER  - 
%0 Journal Article
%A Ĺubica Holá
%A Alireza Kamel Mirmostafaee
%T Points of openness of some mappings
%J Filomat
%D 2021
%P 5209 
%V 35
%N 15
%U http://geodesic.mathdoc.fr/articles/10.2298/FIL2115209H/
%R 10.2298/FIL2115209H
%G en
%F 10_2298_FIL2115209H

Cité par Sources :