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Area Any area Mathematics (936) Computer science (28) Physics & astronomy (22) Chemistry & materials (13) Life sciences (6) Earth & society (6)
Field All of mathematics Algebra (45) Analysis (69) Combinatorics (158) Geometry (72) Graph theory (71) Logic & formalisation (10) Number theory (500) Probability (11)
Problem Any problem in graph theory Bondy's conjecture on longest cycles in highly connected graphs Conway thrackle constant Conway's 99-graph problem Crossing numbers of complete and complete bipartite graphs Dean's conjecture on cycles of length divisible by k Erdős Problem #1029 Erdős Problem #1030 Erdős Problem #1035 Erdős Problem #1068 Erdős Problem #108 Erdős Problem #1175 Erdős Problem #128 Erdős Problem #159 Erdős Problem #184 Erdős Problem #19 Erdős Problem #23 Erdős Problem #544 Erdős Problem #545 Erdős Problem #551 Erdős Problem #552 Erdős Problem #566 Erdős Problem #568 Erdős Problem #569 Erdős Problem #572 Erdős Problem #579 Erdős Problem #583 Erdős Problem #595 Erdős Problem #596 Erdős Problem #60 Erdős Problem #61 Erdős Problem #628 Erdős Problem #64 Erdős Problem #65 Erdős Problem #713 Erdős Problem #714 Erdős Problem #740 Erdős Problem #742 Erdős Problem #75 Erdős Problem #77 Erdős Problem #78 Erdős Problem #86 Erdős Problem #87 Erdős Problem #883 Erdős Problem #918 Erdős–Gyárfás conjecture Kotzig's Conjecture Latin Tableau Conjecture Maximum Chromatic Number of Biplanar Graphs Minimal triangle density in graphs Pebbling number conjecture Reed's omega, delta, and chi conjecture Ringel's Conjecture Shannon capacity of the 7-cycle Sidorenko's Conjecture Sidorenko's conjecture (1993) The Alon-Tarsi short cycle cover conjecture The coefficient of the acyclic chromatic index The degree–diameter problem for graphs The graceful tree conjecture (Ringel–Kotzig) The graph reconstruction conjecture The Lovász–Plummer conjecture (proved 2011) and Sheehan's conjecture The Ramsey number R(4,6) The Ramsey number R(5,5) TxGraffiti Conjecture 2: zero forcing versus independence (cubic graphs) TxGraffiti Conjecture 3: independent domination versus saturation (regular) Vizing's conjecture (1968) Written on the Wall II - Conjecture 100 Written on the Wall II - Conjecture 133 Written on the Wall II - Conjecture 19 Written on the Wall II - Conjecture 198a Written on the Wall II - Conjecture 61
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