In mathematics, there are several conjectures made by Emil Artin: Artin conjecture (L-functions) Artin's conjecture on primitive roots The (now proved) conjecture that finite fields are quasi-algebraically closed; see Chevalley–Warning theorem The (now disproved) conjecture that any algebraic form over the p-adics of degree d in more than d2 variables represents zero: that is, that all p-adic fields are C2; see Ax–Kochen theorem or Brauer's theorem on forms Artin had also conjectured Hasse's theorem on elliptic curves