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Robert Samal

TypePostAuthorRepliesLast post
Open problemChords of longest cycles mdevos13 years 4 weeks ago
Open problemDo any three longest paths in a connected graph have a vertex in common? fhavet13 years 4 weeks ago
Open problemr-regular graphs are not uniquely hamiltonian. Robert Samal34 years 21 weeks ago
Open problem Graceful Tree Conjecture kintali135 years 50 weeks ago
Open problemHedetniemi's Conjecture mdevos56 years 36 weeks ago
Open problemSteinberg's conjecture fhavet110 years 9 weeks ago
forum topicGive us your suggestions! md1714 years 2 weeks ago
Open problemCores of Cayley graphs Robert Samal314 years 37 weeks ago
Open problemStar height problem porton114 years 46 weeks ago
forum topicQuestion about 'solving' something niekeaerts314 years 51 weeks ago
Open problemStrong 5-cycle double cover conjecture arthur814 years 51 weeks ago
Open problemPetersen coloring conjecture mdevos214 years 51 weeks ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos214 years 51 weeks ago
Open problemBarnette's Conjecture Robert Samal115 years 14 weeks ago
Open problemHirsch Conjecture Robert Samal415 years 18 weeks ago
Open problemComplexity of square-root sum abie515 years 19 weeks ago
Open problemSeymour's Second Neighbourhood Conjecture nkorppi515 years 34 weeks ago
Open problemReal roots of the flow polynomial mdevos215 years 47 weeks ago
Open problemStar chromatic index of complete graphs Robert Samal016 years 1 day ago
categorystar coloring Robert Samal016 years 1 day ago
categoryedge coloring Robert Samal016 years 1 day ago
categoryDvorak, Zdenek Robert Samal016 years 1 day ago
Open problemStar chromatic index of cubic graphs Robert Samal016 years 1 day ago
Open problemCo-separability of filter objects porton616 years 9 weeks ago
forum topicMaintaining questions in a subject area rybu416 years 10 weeks ago