29 citations · 136 across the 37 of their papers we have counts for
39 papers
Closed copies of in
Alan Dow, Klaas Pieter Hart, Jan van Mill +1
We investigate closed copies of~ in powers of~ with respect to - and -embedding. We show that contains closed copies of~$\mathbb{…
Long chains in the Rudin-Frolík order for uncountable cardinals
Klaas Pieter Hart
We point out that a construction by Butkovičová of a chain of length in the Rudin-Frolík order on can easily be adapted to produce, given an uncountable cardi…
Many subalgebras of
Klaas Pieter Hart
In answer to a question on Mathoverflow we show that the Boolean algebra contains a family of subalgebras w…
Some realcompact spaces
Alan Dow, Jan van Mill, Klaas Pieter Hart +1
We present examples of realcompact spaces with closed subsets that are C*-embedded but not C-embedded, including one where the closed set is a copy of the space of natural numbers.
Problems on
Klaas Pieter Hart, Jan van Mill
This is an update on, and expansion of, our paper Open problems on in the book Open Problems in Topology.
Universal autohomeomorphisms of
Klaas Pieter Hart, Jan van Mill
We study the existence of universal autohomeomorphisms of . We prove that implies there is such an autohomeomorphism and show that there are none in any…