The Cantor-space conjecture for crowded Baire CDH groups

From papers

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 2ω2^\omega. Cantor-space conjecture. Every crowded Baire CDH group contains a copy of 2ω2^\omega.

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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