Ultrafilters without immediate predecessors in Rudin-Frolík order
Butkovičová, Eva
Commentationes Mathematicae Universitatis Carolinae, Tome 023 (1982), p. 757-766 / Harvested from Czech Digital Mathematics Library
Publié le : 1982-01-01
Classification:  03E05,  04A20
@article{106194,
     author = {Eva Butkovi\v cov\'a},
     title = {Ultrafilters without immediate predecessors in Rudin-Frol\'\i k order},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     volume = {023},
     year = {1982},
     pages = {757-766},
     zbl = {0507.03020},
     mrnumber = {687570},
     language = {en},
     url = {http://dml.mathdoc.fr/item/106194}
}
Butkovičová, Eva. Ultrafilters without immediate predecessors in Rudin-Frolík order. Commentationes Mathematicae Universitatis Carolinae, Tome 023 (1982) pp. 757-766. http://gdmltest.u-ga.fr/item/106194/

L. Bukovský E. Butkovičová Ultrafliter with $\kappa_0$ predecessors in Rudin-Frolík order, Comment. Math. Univ. Carolinae 22 (1981), 429-447. (1981) | MR 0633575

Z. Frolík Sums of ultrafilters, Bull. Amer. Math. Soc. 73 (1967), 87-91. (1967) | MR 0203676

K. Kunen Weak P-points in $N^*$, preprint. | MR 0588822 | Zbl 0435.54021

M. E. Rudin Partial orders of the types in $\beta N$, Trans. Amer. Math. Soc. 155 (1971), 353-362. (1971) | MR 0273581