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Robert Samal

TypePostAuthorRepliesLast post
Open problemChords of longest cycles mdevos11 year 24 weeks ago
Open problemDo any three longest paths in a connected graph have a vertex in common? fhavet11 year 24 weeks ago
Open problemr-regular graphs are not uniquely hamiltonian. Robert Samal32 years 41 weeks ago
Open problem Graceful Tree Conjecture kintali134 years 18 weeks ago
Open problemHedetniemi's Conjecture mdevos55 years 5 weeks ago
Open problemSteinberg's conjecture fhavet18 years 29 weeks ago
forum topicGive us your suggestions! md1712 years 23 weeks ago
Open problemCores of Cayley graphs Robert Samal313 years 5 weeks ago
Open problemStar height problem porton113 years 14 weeks ago
forum topicQuestion about 'solving' something niekeaerts313 years 19 weeks ago
Open problemStrong 5-cycle double cover conjecture arthur813 years 19 weeks ago
Open problemPetersen coloring conjecture mdevos213 years 19 weeks ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos213 years 19 weeks ago
Open problemBarnette's Conjecture Robert Samal113 years 34 weeks ago
Open problemHirsch Conjecture Robert Samal413 years 39 weeks ago
Open problemComplexity of square-root sum abie513 years 40 weeks ago
Open problemSeymour's Second Neighbourhood Conjecture nkorppi514 years 3 weeks ago
Open problemReal roots of the flow polynomial mdevos214 years 16 weeks ago
Open problemStar chromatic index of complete graphs Robert Samal014 years 20 weeks ago
categorystar coloring Robert Samal014 years 20 weeks ago
categoryedge coloring Robert Samal014 years 20 weeks ago
categoryDvorak, Zdenek Robert Samal014 years 20 weeks ago
Open problemStar chromatic index of cubic graphs Robert Samal014 years 20 weeks ago
Open problemCo-separability of filter objects porton614 years 30 weeks ago
forum topicMaintaining questions in a subject area rybu414 years 30 weeks ago