Contractibility of a crossing-matching complex
For a reducible quasi-reduced free-group word , let be the CW complex whose cells encode crossing matchings and their resolutions. Must be contractible?
References
Primary source
Progress summary
Refreshed
Open
No one appears to have made public progress on this contractibility question.
No public discussion or published progress was found for the question of whether the crossing-matching complex associated with a reducible quasi-reduced free-group word is contractible.
Current status (as of March 2026): The question appears open, with no recorded public activity found.
Solutions 0
No solutions have been posted yet.