Category:数学のオープンプロブレム

Millennium Prize Problems

List of unsolved problems in statistics

Kobon triangle problem

Hilbert's problems

Pierce–Birkhoff conjecture

Andrica's conjecture

Isomorphism problem of Coxeter groups

Erdős–Straus conjecture

L (complexity)

Smale's problems

Lychrel number

Fermat–Catalan conjecture

Farrell–Jones conjecture

Class number problem

Beal conjecture

Conway's 99-graph problem

Moving sofa problem

Sums of three cubes

Ruth–Aaron pair

Burnside problem

Hodge conjecture

Yang–Mills existence and mass gap

Navier–Stokes existence and smoothness

List of unsolved problems in mathematics

Collatz conjecture

Riemann hypothesis