Kata Kunci Pencarian:
- Daftar masalah matematika yang belum terpecahkan
- Burr–Erdős conjecture
- List of conjectures by Paul Erdős
- List of things named after Paul Erdős
- List of unsolved problems in mathematics
- Paul Erdős
- Degeneracy (graph theory)
- Ramsey's theorem
- Stefan Burr
- Ronald Graham
- Peter Lax
