Categories

Browse problems by mathematical discipline, following the Mathematics Subject Classification (MSC 2020).

Mathematical Statistics

MSC 62

Statistical estimation, hypothesis testing, asymptotic theory, nonparametric statistics, high-dimensional inference.

71 problems

Information Theory

MSC 94A

Shannon theory, coding theory, entropy, mutual information, channel capacity.

38 problems

Probability Theory

MSC 60

Probability theory, stochastic processes, random matrices, concentration inequalities, large deviations.

30 problems

Learning Theory

MSC 68Q32

Computational learning theory, statistical learning, PAC learning, online learning, information-theoretic limits.

29 problems

Optimization & Variational Methods

MSC 49-90

Convex and non-convex optimization, combinatorial optimization, variational analysis, optimal control.

23 problems

Combinatorics & Graph Theory

MSC 05

Enumerative, algebraic, extremal, and probabilistic combinatorics; graph theory.

9 problems

Theoretical Computer Science

MSC 68

Computational complexity, algorithms, cryptography, quantum computing, formal languages.

4 problems

Analysis & PDEs

MSC 26-46

Real and complex analysis, functional analysis, harmonic analysis, partial differential equations.

1 problem

Mathematical Physics

MSC 81-83

Quantum field theory, statistical mechanics, general relativity, string theory (mathematical aspects).

1 problem

Number Theory

MSC 11

Analytic and algebraic number theory, prime distribution, Diophantine equations, arithmetic geometry.

No problems yet

Algebra

MSC 13-20

Group theory, ring theory, field theory, homological algebra, representation theory.

No problems yet

Geometry & Topology

MSC 14-57

Differential geometry, algebraic geometry, algebraic topology, manifold theory.

No problems yet

Dynamical Systems & Ergodic Theory

MSC 37

Continuous and discrete dynamical systems, chaos, ergodic theory, bifurcation.

No problems yet

Numerical Analysis & Scientific Computing

MSC 65

Approximation theory, numerical linear algebra, numerical PDEs, computational complexity of continuous problems.

No problems yet

Logic & Foundations

MSC 03

Mathematical logic, set theory, model theory, computability theory, proof theory.

No problems yet