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Preprint in the OpenAI Math release

An explicit noncoordinate polynomial with affine three-space zero fibre

OpenAI

Abstract

We construct an explicit counterexample to the Abhyankar–Sathaye conjecture: a noncoordinate polynomial in four complex variables whose zero fibre is affine three-space. Adjoining variables gives counterexamples in every ambient dimension at least four.

open until 1 Jan 2028

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