Abstract
The main theorem characterizes the quasi‐perfect and perfect preimages of T1‐spaces having a base of countable order. The preimages of T1‐spaces having a base of countable order are connected with the preimages of T1‐spaces having a primitive base under the same type of mappings.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.