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| Type | Title | Author | Replies | Last Post |
|---|---|---|---|---|
| category | perfect graph | mdevos | 0 | 18 years 25 weeks ago |
| category | odd hole | mdevos | 0 | 18 years 25 weeks ago |
| Open problem | Bounding the chromatic number of graphs with no odd hole | mdevos | 0 | 18 years 25 weeks ago |
| category | Cusick, Thomas W. | mdevos | 0 | 18 years 25 weeks ago |
| category | Wills, Jorg M. | mdevos | 0 | 18 years 25 weeks ago |
| category | diophantine approximation | mdevos | 0 | 18 years 25 weeks ago |
| category | view obstruction | mdevos | 0 | 18 years 25 weeks ago |
| Open problem | Lonely runner conjecture | mdevos | 0 | 18 years 25 weeks ago |
| category | subset sum | mdevos | 0 | 18 years 25 weeks ago |
| category | girth | mdevos | 0 | 18 years 25 weeks ago |
| Open problem | Mapping planar graphs to odd cycles | mdevos | 0 | 18 years 25 weeks ago |
| Open problem | 5-local-tensions | mdevos | 0 | 18 years 26 weeks ago |
| category | Guo, Ji-Ming | Robert Samal | 0 | 18 years 26 weeks ago |
| category | Laplacian matrix | Robert Samal | 0 | 18 years 26 weeks ago |
| category | degree sequence | Robert Samal | 0 | 18 years 26 weeks ago |
| category | van der Waerden | Anonymous | 0 | 18 years 26 weeks ago |
| category | arithmetic progression | Anonymous | 0 | 18 years 26 weeks ago |
| Open problem | Concavity of van der Waerden numbers | Bruce Landman | 0 | 18 years 26 weeks ago |
| Open problem | Circular coloring triangle-free subcubic planar graphs | mdevos | 0 | 18 years 26 weeks ago |
| category | Ghebleh, Mohammad | mdevos | 0 | 18 years 26 weeks ago |
| category | circular coloring | mdevos | 0 | 18 years 26 weeks ago |
| category | lattice | mdevos | 0 | 18 years 26 weeks ago |
| Open problem | Decomposing the truncated octahedron into parallelepipeds | mdevos | 0 | 18 years 26 weeks ago |
| category | decomposition | mdevos | 0 | 18 years 26 weeks ago |
| category | parallelepiped | mdevos | 0 | 18 years 26 weeks ago |
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