Kata Kunci Pencarian:
- Daftar masalah matematika yang belum terpecahkan
- Bing–Borsuk conjecture
- Karol Borsuk
- Poincaré conjecture
- R. H. Bing
- List of unsolved problems in mathematics
- Busemann G-space
- Glossary of algebraic topology
- List of theorems
- Alex Chigogidze
