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Aug 10, 2019 at 10:41 vote accept Dominic van der Zypen
Aug 9, 2019 at 14:43 answer added Florian Lehner timeline score: 4
Aug 9, 2019 at 14:32 answer added M. Winter timeline score: 3
Aug 9, 2019 at 12:21 comment added M. Winter The title might be slightly misleading, as graphs in which there is a covering with $\mathrm m(C)=\varnothing$ do not have the desired property.
Aug 9, 2019 at 9:10 history asked Dominic van der Zypen CC BY-SA 4.0