Similar to フェルマー＝カタラン予想

List of unsolved problems in mathematics

Andrica's conjecture

Isomorphism problem of Coxeter groups

Conway's 99-graph problem

Smale's problems

Moving sofa problem

List of unsolved problems in statistics

Navier–Stokes existence and smoothness

Burnside problem

Hilbert's problems

Kobon triangle problem

Millennium Prize Problems

Yang–Mills existence and mass gap

Lychrel number

Class number problem

Einstein's constant

Artin reciprocity

Artin–Rees lemma

Albanese variety

Alexander polynomial

List of things named after Alexander Grothendieck

Alexandrov theorem

Anscombe's quartet