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Robert Samal

TypePostAuthorRepliesLast post
Open problemChords of longest cycles mdevos12 years 4 weeks ago
Open problemDo any three longest paths in a connected graph have a vertex in common? fhavet12 years 4 weeks ago
Open problemr-regular graphs are not uniquely hamiltonian. Robert Samal33 years 21 weeks ago
Open problem Graceful Tree Conjecture kintali134 years 50 weeks ago
Open problemHedetniemi's Conjecture mdevos55 years 36 weeks ago
Open problemSteinberg's conjecture fhavet19 years 9 weeks ago
forum topicGive us your suggestions! md1713 years 2 weeks ago
Open problemCores of Cayley graphs Robert Samal313 years 37 weeks ago
Open problemStar height problem porton113 years 46 weeks ago
forum topicQuestion about 'solving' something niekeaerts313 years 51 weeks ago
Open problemStrong 5-cycle double cover conjecture arthur813 years 51 weeks ago
Open problemPetersen coloring conjecture mdevos213 years 51 weeks ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos213 years 51 weeks ago
Open problemBarnette's Conjecture Robert Samal114 years 14 weeks ago
Open problemHirsch Conjecture Robert Samal414 years 18 weeks ago
Open problemComplexity of square-root sum abie514 years 19 weeks ago
Open problemSeymour's Second Neighbourhood Conjecture nkorppi514 years 34 weeks ago
Open problemReal roots of the flow polynomial mdevos214 years 48 weeks ago
Open problemStar chromatic index of complete graphs Robert Samal015 years 1 day ago
categorystar coloring Robert Samal015 years 1 day ago
categoryedge coloring Robert Samal015 years 1 day ago
categoryDvorak, Zdenek Robert Samal015 years 1 day ago
Open problemStar chromatic index of cubic graphs Robert Samal015 years 1 day ago
Open problemCo-separability of filter objects porton615 years 9 weeks ago
forum topicMaintaining questions in a subject area rybu415 years 10 weeks ago