Cardinal p and a theorem of Pelczynski
arXiv:math/0006197
Abstract
We show that it is consistent that for some uncountable cardinal k, all compactifications of the countable discrete space with remainders homeomorphic to are homeomorphic to each other. On the other hand, there are pairwise non-homeomorphic compactifications of the countable discrete space with remainders homeomorphic to (where c is the cardinality of the continuum).