Claude Fable Announces Counterexample to Long‑Standing Jacobian Conjecture

Claude Fable, a researcher in mathematics, reported a new result concerning the Jacobian Conjecture. The Jacobian Conjecture is a famous unsolved problem in algebraic geometry. Fable’s work proposes a specific counterexample that challenges the conjecture’s validity. The claim was shared publicly through an online post. If verified, the counterexample could overturn decades of research. Experts will need to review the proof for rigor and correctness. The mathematics community is awaiting peer‑reviewed publication. The development may reshape future work on related algebraic problems.