Inverse Galois problem
Can every finite group occur as the Galois group of a finite extension of the rational numbers?
Field symmetries and rational points on curves and higher-dimensional varieties.
Subjects: Number theory · Arithmetic geometry
Can every finite group occur as the Galois group of a finite extension of the rational numbers?
An elliptic curve has both rational solutions and an analytic function. The conjecture predicts that these two ways of studying it encode the same rank.
Can rational torsion be bounded by abelian-variety dimension and number-field degree?
Algebraic spaces of general type are predicted to have rational points confined to a smaller algebraic subset, rather than spread densely everywhere.
Do all Galois-invariant cohomology classes of the relevant degree come from algebraic cycles over a finite field?
Can finite arithmetic orbits be bounded by map degree and number-field degree alone?
Does the arithmetic fundamental group of a curve identify exactly its rational points?