On accumulation points
An example of maximal connected Hausdorff space
Čechův-Stoneův -obal
Bernard Bolzano a teorie dimenze
Strong decomposability of ultrafilters on cardinals with countable cofinality
Sacks forcing collapses to
We shall prove that Sacks algebra is nowhere -distributive, which implies that Sacks forcing collapses to .
On the existence of true uniform ultrafilters
We shall show that there is an ultrafilter on singular with countable cofinality, which cannot be reached from the set of all subuniform ultrafilters by iterating the closure of sets of size .
Covering of a space by nowhere dense sets
A note on nowhere dense sets in
Left-separated spaces: a comment to a paper of M. G. Tkačenko
On local merotopic character
A note on Rudin's example of Dowker space
A somewhat surprising subspace of
On continuous images of Eberlein compacts
A note on cardinal invariants of square
Completely regular modification and products
A compact Fréchet space whose square is not Fréchet
On natural merotopies
A closed separable subspace not being a retract of
An upper bound for countably splitting number
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