The Cantor-space conjecture for crowded Baire CDH groups
The Cantor-space conjecture for crowded Baire CDH groups
A topological group is CDH (countable dense homogeneous) if any two countable dense subsets are carried to one another by a homeomorphism of the group. A space is crowded if it has no isolated points, and Baire if the intersection of every countable family of dense open sets is dense. The Cantor space is . Cantor-space conjecture. Every crowded Baire CDH group contains a copy of .
This conjecture is intended to resolve the cited open problem about crowded Baire CDH spaces in the realm of groups. The source presents it as open and gives no resolution.
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Sources & referencesView supporting material
Primary source
Claudio Agostini, Andrea Medini and Lyubomyr Zdomskyy, “Countable dense homogeneity and topological groups”, arXiv:2501.09455 (2025).
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