Constant nonzero Jacobian implies global polynomial invertibility. Settled in two variables, open in three and above; stably equivalent to Dixmier's conjecture.
The Problems
Not schoolwork — the questions that resisted Erdős, Hilbert, and everyone since. The club keeps three shelves: what is still open, what AI recently settled, and what took humanity centuries.
Tagged affine-geometry — 1 entry. Clear