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| Type | Title | Author | Replies | Last Post |
|---|---|---|---|---|
| category | r-graph | mdevos | 0 | 17 years 36 weeks ago |
| Open problem | Seymour's r-graph conjecture | mdevos | 0 | 17 years 36 weeks ago |
| category | perfect number | Anonymous | 0 | 17 years 37 weeks ago |
| forum topic | An other list of open problems in graph theory | porton | 0 | 17 years 37 weeks ago |
| Open problem | Edge list coloring conjecture | tchow | 0 | 17 years 37 weeks ago |
| category | Frankl, Peter | Anonymous | 0 | 17 years 37 weeks ago |
| category | Rapaport-Strasser, E. | Anonymous | 0 | 17 years 37 weeks ago |
| Open problem | Middle levels problem | tchow | 0 | 17 years 37 weeks ago |
| category | Poulsen, E. T. | Anonymous | 0 | 17 years 37 weeks ago |
| category | pushing disks | Anonymous | 0 | 17 years 37 weeks ago |
| category | Kneser, M. | Anonymous | 0 | 17 years 37 weeks ago |
| Open problem | Kneser–Poulsen conjecture | tchow | 0 | 17 years 37 weeks ago |
| forum topic | Should delete open problem? | porton | 1 | 17 years 37 weeks ago |
| category | Chow, Timothy Y. | Anonymous | 0 | 17 years 37 weeks ago |
| Open problem | Wide partition conjecture | tchow | 0 | 17 years 37 weeks ago |
| category | Taylor, Brian D. | Anonymous | 0 | 17 years 37 weeks ago |
| category | Naserasr, Reza | mdevos | 0 | 17 years 37 weeks ago |
| category | orthogonality | mdevos | 0 | 17 years 37 weeks ago |
| forum topic | Server error | porton | 1 | 17 years 38 weeks ago |
| category | chinese postman tour | Robert Samal | 0 | 17 years 38 weeks ago |
| category | cycle cover | Robert Samal | 0 | 17 years 38 weeks ago |
| Open problem | 3-accessibility of Fibonacci numbers | vjungic | 0 | 17 years 41 weeks ago |
| category | Fibonacci numbers | Anonymous | 0 | 17 years 41 weeks ago |
| category | Szemeredi, Endre | mdevos | 0 | 17 years 44 weeks ago |
| category | product set | mdevos | 0 | 17 years 44 weeks ago |
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