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Robert Samal

TypePostAuthorRepliesLast post
Open problemChords of longest cycles mdevos12 years 9 weeks ago
Open problemDo any three longest paths in a connected graph have a vertex in common? fhavet12 years 9 weeks ago
Open problemr-regular graphs are not uniquely hamiltonian. Robert Samal33 years 26 weeks ago
Open problem Graceful Tree Conjecture kintali135 years 3 weeks ago
Open problemHedetniemi's Conjecture mdevos55 years 42 weeks ago
Open problemSteinberg's conjecture fhavet19 years 14 weeks ago
forum topicGive us your suggestions! md1713 years 8 weeks ago
Open problemCores of Cayley graphs Robert Samal313 years 42 weeks ago
Open problemStar height problem porton113 years 51 weeks ago
forum topicQuestion about 'solving' something niekeaerts314 years 4 weeks ago
Open problemStrong 5-cycle double cover conjecture arthur814 years 4 weeks ago
Open problemPetersen coloring conjecture mdevos214 years 4 weeks ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos214 years 4 weeks ago
Open problemBarnette's Conjecture Robert Samal114 years 19 weeks ago
Open problemHirsch Conjecture Robert Samal414 years 24 weeks ago
Open problemComplexity of square-root sum abie514 years 25 weeks ago
Open problemSeymour's Second Neighbourhood Conjecture nkorppi514 years 40 weeks ago
Open problemReal roots of the flow polynomial mdevos215 years 1 week ago
Open problemStar chromatic index of complete graphs Robert Samal015 years 5 weeks ago
categorystar coloring Robert Samal015 years 5 weeks ago
categoryedge coloring Robert Samal015 years 5 weeks ago
categoryDvorak, Zdenek Robert Samal015 years 5 weeks ago
Open problemStar chromatic index of cubic graphs Robert Samal015 years 5 weeks ago
Open problemCo-separability of filter objects porton615 years 15 weeks ago
forum topicMaintaining questions in a subject area rybu415 years 15 weeks ago