Similar to ホッジ予想

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1093 (number)

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

Hilbert's problems

Kobon triangle problem

Lychrel number

Class number problem

Ruth–Aaron pair

Einstein's constant

List of things named after Alexander Grothendieck

Alexandrov theorem