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Robert Samal

TypePostAuthorRepliesLast post
Open problemChords of longest cycles mdevos12 years 12 weeks ago
Open problemDo any three longest paths in a connected graph have a vertex in common? fhavet12 years 12 weeks ago
Open problemr-regular graphs are not uniquely hamiltonian. Robert Samal33 years 28 weeks ago
Open problem Graceful Tree Conjecture kintali135 years 5 weeks ago
Open problemHedetniemi's Conjecture mdevos55 years 44 weeks ago
Open problemSteinberg's conjecture fhavet19 years 17 weeks ago
forum topicGive us your suggestions! md1713 years 10 weeks ago
Open problemCores of Cayley graphs Robert Samal313 years 45 weeks ago
Open problemStar height problem porton114 years 1 week ago
forum topicQuestion about 'solving' something niekeaerts314 years 6 weeks ago
Open problemStrong 5-cycle double cover conjecture arthur814 years 6 weeks ago
Open problemPetersen coloring conjecture mdevos214 years 6 weeks ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos214 years 6 weeks ago
Open problemBarnette's Conjecture Robert Samal114 years 22 weeks ago
Open problemHirsch Conjecture Robert Samal414 years 26 weeks ago
Open problemComplexity of square-root sum abie514 years 27 weeks ago
Open problemSeymour's Second Neighbourhood Conjecture nkorppi514 years 42 weeks ago
Open problemReal roots of the flow polynomial mdevos215 years 3 weeks ago
Open problemStar chromatic index of complete graphs Robert Samal015 years 8 weeks ago
categorystar coloring Robert Samal015 years 8 weeks ago
categoryedge coloring Robert Samal015 years 8 weeks ago
categoryDvorak, Zdenek Robert Samal015 years 8 weeks ago
Open problemStar chromatic index of cubic graphs Robert Samal015 years 8 weeks ago
Open problemCo-separability of filter objects porton615 years 17 weeks ago
forum topicMaintaining questions in a subject area rybu415 years 18 weeks ago