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| Type | Title | Author | Replies | Last Post |
|---|---|---|---|---|
| Open problem | Graceful Tree Conjecture | kintali | 13 | 5 years 27 weeks ago |
| Open problem | Extremal problem on the number of tree endomorphism | shudeshijie | 3 | 5 years 28 weeks ago |
| Open problem | 3-Colourability of Arrangements of Great Circles | David Wood | 2 | 5 years 32 weeks ago |
| category | KPZ equation, central limit theorem | Anonymous | 0 | 5 years 35 weeks ago |
| category | KPZ equation, universality, central limit theorem | Anonymous | 0 | 5 years 35 weeks ago |
| Open problem | KPZ Universality Conjecture | Tomas Kojar | 0 | 5 years 35 weeks ago |
| Open problem | Friendly partitions | mdevos | 1 | 5 years 44 weeks ago |
| Open problem | Finite entailment of Positive Horn logic | LucSegoufin | 1 | 5 years 51 weeks ago |
| Open problem | Triangle free strongly regular graphs | mdevos | 4 | 6 years 1 week ago |
| Open problem | A discrete iteration related to Pierce expansions | shallit | 2 | 6 years 1 week ago |
| category | PDEs | rs | 0 | 6 years 1 week ago |
| category | Probability | rs | 0 | 6 years 1 week ago |
| Open problem | Bounding the chromatic number of triangle-free graphs with fixed maximum degree | Andrew King | 1 | 6 years 3 weeks ago |
| category | 3-edge coloring | Anonymous | 0 | 6 years 6 weeks ago |
| category | removable edge | Anonymous | 0 | 6 years 6 weeks ago |
| category | 4-flow | Anonymous | 0 | 6 years 6 weeks ago |
| Open problem | Hedetniemi's Conjecture | mdevos | 5 | 6 years 14 weeks ago |
| Open problem | Diophantine quintuple conjecture | maxal | 1 | 6 years 15 weeks ago |
| Open problem | (2 + epsilon)-flow conjecture | mdevos | 1 | 6 years 16 weeks ago |
| Open problem | Several ways to apply a (multivalued) multiargument function to a family of filters | porton | 2 | 6 years 21 weeks ago |
| category | function | Anonymous | 0 | 6 years 24 weeks ago |
| category | staroid | Anonymous | 0 | 6 years 24 weeks ago |
| Open problem | Jones' conjecture | cmlee | 3 | 6 years 26 weeks ago |
| Open problem | Multicolour Erdős--Hajnal Conjecture | Jon Noel | 0 | 6 years 34 weeks ago |
| category | density problems | Anonymous | 0 | 6 years 34 weeks ago |
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