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Robert Samal

TypePostAuthorRepliesLast post
Open problemChords of longest cycles mdevos12 years 48 weeks ago
Open problemDo any three longest paths in a connected graph have a vertex in common? fhavet12 years 48 weeks ago
Open problemr-regular graphs are not uniquely hamiltonian. Robert Samal34 years 12 weeks ago
Open problem Graceful Tree Conjecture kintali135 years 41 weeks ago
Open problemHedetniemi's Conjecture mdevos56 years 28 weeks ago
Open problemSteinberg's conjecture fhavet110 years 3 days ago
forum topicGive us your suggestions! md1713 years 46 weeks ago
Open problemCores of Cayley graphs Robert Samal314 years 28 weeks ago
Open problemStar height problem porton114 years 37 weeks ago
forum topicQuestion about 'solving' something niekeaerts314 years 42 weeks ago
Open problemStrong 5-cycle double cover conjecture arthur814 years 42 weeks ago
Open problemPetersen coloring conjecture mdevos214 years 42 weeks ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos214 years 42 weeks ago
Open problemBarnette's Conjecture Robert Samal115 years 5 weeks ago
Open problemHirsch Conjecture Robert Samal415 years 10 weeks ago
Open problemComplexity of square-root sum abie515 years 11 weeks ago
Open problemSeymour's Second Neighbourhood Conjecture nkorppi515 years 26 weeks ago
Open problemReal roots of the flow polynomial mdevos215 years 39 weeks ago
Open problemStar chromatic index of complete graphs Robert Samal015 years 43 weeks ago
categorystar coloring Robert Samal015 years 43 weeks ago
categoryedge coloring Robert Samal015 years 43 weeks ago
categoryDvorak, Zdenek Robert Samal015 years 43 weeks ago
Open problemStar chromatic index of cubic graphs Robert Samal015 years 43 weeks ago
Open problemCo-separability of filter objects porton616 years 1 week ago
forum topicMaintaining questions in a subject area rybu416 years 1 week ago