| Title:
|
Ultrafilters without immediate predecessors in Rudin-Frolík order (English) |
| Author:
|
Butkovičová, Eva |
| Language:
|
English |
| Journal:
|
Commentationes Mathematicae Universitatis Carolinae |
| ISSN:
|
0010-2628 (print) |
| ISSN:
|
1213-7243 (online) |
| Volume:
|
23 |
| Issue:
|
4 |
| Year:
|
1982 |
| Pages:
|
757-766 |
| . |
| Category:
|
math |
| . |
| MSC:
|
03E05 |
| MSC:
|
04A20 |
| idZBL:
|
Zbl 0507.03020 |
| idMR:
|
MR687570 |
| . |
| Date available:
|
2008-06-05T21:13:30Z |
| Last updated:
|
2012-04-28 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/106194 |
| . |
| Related article:
|
http://dml.cz/handle/10338.dmlcz/106216 |
| . |
| Reference:
|
[1] L. Bukovský E. Butkovičová: Ultrafliter with $\kappa_0$ predecessors in Rudin-Frolík order.Comment. Math. Univ. Carolinae 22 (1981), 429-447. MR 0633575 |
| Reference:
|
[2] Z. Frolík: Sums of ultrafilters.Bull. Amer. Math. Soc. 73 (1967), 87-91. MR 0203676 |
| Reference:
|
[3] K. Kunen: Weak P-points in $N^*$.preprint. Zbl 0435.54021, MR 0588822 |
| Reference:
|
[4] M. E. Rudin: Partial orders of the types in $\beta N$.Trans. Amer. Math. Soc. 155 (1971), 353-362. MR 0273581 |
| . |
