Similar to ホッジ予想

Ample line bundle

Nakai conjecture

Jacobian conjecture

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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

Burnside problem

Kobon triangle problem

Lychrel number

Class number problem

Ruth–Aaron pair