Short complete nested sequences in βN⧹N and small maximal almost-disjoint families

General Topology and its Applications - Tập 2 - Trang 139-149 - 1972
Stephen H. Hechler1
1Department of Mathematics, Case Western Reserve University, Cleveland, Ohio 44106 USA

Tài liệu tham khảo

Cohen, 1966 Gillman, 1960 Hechler, 1971, Classifying almost-disjoint families with applications to βN⧹N, Israel J. Math., 10, 413, 10.1007/BF02771729 Kunen, 1970, On the compatification of the integers (Preliminary Rept.), Notices Amer. Math. Soc., 17, 299 Martin, 1970, Internal Cohen extensions, Ann. Math. Logic, 2, 143, 10.1016/0003-4843(70)90009-4 Solovay, 1971, Iterated Cohen extensions and Souslin's problem, Ann. Math., 94, 201, 10.2307/1970860