𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Not realcompact images of not Lindelöf spaces

✍ Scribed by Frederick Eckertson; William Fleissner; Alexander Korovin; Ronnie Levy


Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
783 KB
Volume
58
Category
Article
ISSN
0166-8641

No coin nor oath required. For personal study only.


📜 SIMILAR VOLUMES


Not all realcompact spaces are ultrapure
✍ Howard Wicke 📂 Article 📅 1999 🏛 Elsevier Science 🌐 English ⚖ 269 KB

A general theorem (Theorem 1) concerning when spaces are not ultrapure in the sense of Arhangel'skii is proved. Arhangel'skii, in conversation, asked whether realcompactness implies his concept of ultrapurity and whether there are ZFC examples of astral spaces which are not ultrapure. TodorEevE in (

A separable normal topological group nee
✍ A. Hajnal; I. Juhász 📂 Article 📅 1976 🏛 Elsevier Science ⚖ 663 KB

Applying the continuum hypothesis, we c anstruct a hereditarily separable and hereditarily normal topological group which s not Lindeliif,