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| Type | Title | Author | Replies | Last Post |
|---|---|---|---|---|
| category | Alexander, J | Anonymous | 0 | 16 years 31 weeks ago |
| Open problem | Smooth 4-dimensional Schoenflies problem | rybu | 0 | 16 years 31 weeks ago |
| category | odd-crossing number | Anonymous | 0 | 16 years 31 weeks ago |
| category | Tóth, Géza | Anonymous | 0 | 16 years 31 weeks ago |
| category | pair-crossing number | Anonymous | 0 | 16 years 31 weeks ago |
| category | Pach, János | Anonymous | 0 | 16 years 31 weeks ago |
| Open problem | Are different notions of the crossing number the same? | cibulka | 0 | 16 years 31 weeks ago |
| category | Beneš, Václav E. | Anonymous | 0 | 16 years 32 weeks ago |
| category | Stone, Harold S. | Anonymous | 0 | 16 years 32 weeks ago |
| Open problem | Shuffle-Exchange Conjecture (graph-theoretic form) | Vadim Lioubimov | 0 | 16 years 32 weeks ago |
| category | complete geometric graph, edge colouring | Anonymous | 0 | 16 years 33 weeks ago |
| category | geometric complete graph, colouring | Anonymous | 0 | 16 years 33 weeks ago |
| Open problem | Edge-Colouring Geometric Complete Graphs | David Wood | 0 | 16 years 33 weeks ago |
| category | clique | Anonymous | 0 | 16 years 34 weeks ago |
| Open problem | Number of Cliques in Minor-Closed Classes | David Wood | 0 | 16 years 34 weeks ago |
| category | graph | Anonymous | 0 | 16 years 34 weeks ago |
| Open problem | A gold-grabbing game | mdevos | 1 | 16 years 36 weeks ago |
| category | game | mdevos | 0 | 16 years 36 weeks ago |
| Open problem | Circular colouring the orthogonality graph | mdevos | 4 | 16 years 36 weeks ago |
| Open problem | Bigger cycles in cubic graphs | mdevos | 1 | 16 years 40 weeks ago |
| Open problem | Crossing numbers and coloring | mdevos | 0 | 16 years 40 weeks ago |
| Open problem | Domination in cubic graphs | mdevos | 0 | 16 years 42 weeks ago |
| category | twin prime | mdevos | 0 | 16 years 42 weeks ago |
| category | complete lattice | Anonymous | 0 | 16 years 45 weeks ago |
| Open problem | Do filters complementive to a given filter form a complete lattice? | porton | 0 | 16 years 45 weeks ago |
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