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Robert Samal

TypePostAuthorRepliesLast post
Open problemChords of longest cycles mdevos16 weeks 6 days ago
Open problemDo any three longest paths in a connected graph have a vertex in common? fhavet16 weeks 6 days ago
Open problemr-regular graphs are not uniquely hamiltonian. Robert Samal31 year 23 weeks ago
Open problem Graceful Tree Conjecture kintali133 years 2 days ago
Open problemHedetniemi's Conjecture mdevos53 years 39 weeks ago
Open problemSteinberg's conjecture fhavet17 years 11 weeks ago
forum topicGive us your suggestions! md1711 years 5 weeks ago
Open problemCores of Cayley graphs Robert Samal311 years 39 weeks ago
Open problemStar height problem porton111 years 48 weeks ago
forum topicQuestion about 'solving' something niekeaerts312 years 1 week ago
Open problemStrong 5-cycle double cover conjecture arthur812 years 1 week ago
Open problemPetersen coloring conjecture mdevos212 years 1 week ago
Open problemCharacterizing (aleph_0,aleph_1)-graphs mdevos212 years 1 week ago
Open problemBarnette's Conjecture Robert Samal112 years 16 weeks ago
Open problemHirsch Conjecture Robert Samal412 years 21 weeks ago
Open problemComplexity of square-root sum abie512 years 22 weeks ago
Open problemSeymour's Second Neighbourhood Conjecture nkorppi512 years 37 weeks ago
Open problemReal roots of the flow polynomial mdevos212 years 50 weeks ago
Open problemStar chromatic index of complete graphs Robert Samal013 years 2 weeks ago
categorystar coloring Robert Samal013 years 2 weeks ago
categoryedge coloring Robert Samal013 years 2 weeks ago
categoryDvorak, Zdenek Robert Samal013 years 2 weeks ago
Open problemStar chromatic index of cubic graphs Robert Samal013 years 2 weeks ago
Open problemCo-separability of filter objects porton613 years 12 weeks ago
forum topicMaintaining questions in a subject area rybu413 years 12 weeks ago