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TypePostAuthorRepliesLast post
Open problemMonochromatic reachability in arc-colored digraphs fhavet01 year 50 weeks ago
Open problemSteinberg's conjecture fhavet12 years 27 weeks ago
categorydirected path fhavet05 years 38 weeks ago
categoryMaia, Ana Karolinna fhavet05 years 38 weeks ago
Open problemLarge acyclic induced subdigraph in a planar oriented graph. fhavet05 years 38 weeks ago
categoryHarutyunyan, Ararat fhavet05 years 38 weeks ago
Open problemCyclic spanning subdigraph with small cyclomatic number fhavet05 years 42 weeks ago
categoryYuster, Raphael fhavet05 years 43 weeks ago
Open problemMinimum number of arc-disjoint transitive subtournaments of order 3 in a tournament fhavet05 years 43 weeks ago
Open problemArc-disjoint directed cycles in regular directed graphs fhavet05 years 44 weeks ago
categoryMolloy, Michael fhavet05 years 44 weeks ago
categoryGiroire, Frédéric fhavet06 years 1 week ago
categoryAraújo, Julio fhavet06 years 1 week ago
categoryCohen, Nathann fhavet06 years 1 week ago
category, Giroire, Frédéric fhavet06 years 1 week ago
Open problemDecomposing k-arc-strong tournament into k spanning strong digraphs fhavet06 years 1 week ago
categoryfeedback arc set fhavet06 years 1 week ago
categoryPTAS fhavet06 years 1 week ago
categoryAilon, Nir fhavet06 years 1 week ago
Open problemPTAS for feedback arc set in tournaments fhavet06 years 1 week ago
categoryAilon, N fhavet06 years 1 week ago
categoryTournaments fhavet06 years 1 week ago
Open problemPartitionning a tournament into k-strongly connected subtournaments. fhavet06 years 1 week ago
categoryMcDiarmid, Colin fhavet06 years 1 week ago
Open problemWeighted colouring of hexagonal graphs. fhavet06 years 1 week ago