Subject classification
| Code | Category | Problems |
|---|---|---|
| AC | Commutative Algebra | — |
| AG | Algebraic Geometry | — |
| AP | Analysis of PDEs | — |
| AT | Algebraic Topology | — |
| CA | Classical Analysis and ODEs | 2 |
| CO | Combinatorics | 2 |
| CT | Category Theory | — |
| CV | Complex Variables | — |
| DG | Differential Geometry | — |
| DS | Dynamical Systems | — |
| FA | Functional Analysis | — |
| GM | General Mathematics | — |
| GN | General Topology | — |
| GR | Group Theory | — |
| GT | Geometric Topology | — |
| HO | History and Overview | — |
| IT | Information Theory | — |
| KT | K-Theory and Homology | — |
| LO | Logic | — |
| MG | Metric Geometry | — |
| MP | Mathematical Physics | — |
| NA | Numerical Analysis | — |
| NT | Number Theory | 15 |
| OA | Operator Algebras | — |
| OC | Optimization and Control | — |
| PR | Probability | — |
| QA | Quantum Algebra | — |
| RA | Rings and Algebras | 1 |
| RT | Representation Theory | — |
| SG | Symplectic Geometry | — |
| SP | Spectral Theory | — |
| ST | Statistics Theory | — |