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Timeline for CAT(0)-groups in dimension 2

Current License: CC BY-SA 3.0

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Jun 15, 2020 at 7:27 history edited CommunityBot
Commonmark migration
Jun 13, 2016 at 18:26 vote accept Matthias Wendt
Jun 13, 2016 at 8:39 comment added HJRW @YCor, I didn't really understand your objection, but anyway I've now edited to give a much more precise result.
Jun 13, 2016 at 8:39 history edited HJRW CC BY-SA 3.0
Major edit to prove a more precise result.
Jun 12, 2016 at 22:20 comment added YCor The groups you mention are a bit pathological but the spaces on which they act are not. So I wouldn't conclude that the question is hopeless in its generality, at least just from these examples.
Jun 12, 2016 at 20:26 history answered HJRW CC BY-SA 3.0