- Tytuł:
- Forcing tightness in products of fans
- Autorzy:
-
Brendle, Jörg
La Berge, Tim - Powiązania:
- https://bibliotekanauki.pl/articles/1205479.pdf
- Data publikacji:
- 1996
- Wydawca:
- Polska Akademia Nauk. Instytut Matematyczny PAN
- Opis:
- We prove two theorems that characterize tightness in certain products of fans in terms of families of integer-valued functions. We also define several notions of forcing that allow us to manipulate the structure of the set of functions from some cardinal θ to ω, and hence, the tightness of these products. These results give new constructions of first countable <θ-cwH spaces that are not ≤θ-cwH.
- Źródło:
-
Fundamenta Mathematicae; 1996, 150, 3; 211-226
0016-2736 - Pojawia się w:
- Fundamenta Mathematicae
- Dostawca treści:
- Biblioteka Nauki
Artykuł