trailVitushkin's 1999 paper constructs a non-injective rational self-map of C² with constant nonzero Jacobian
The 2026 Jacobian conjecture counterexample introduces no essentially new techniques beyond Vitushkin's 1999 work
The 2026 Jacobian conjecture counterexample closely parallels Vitushkin's 1999 rational construction lifted to three dimensions
Vitushkin's construction method faces an obstruction in two dimensions that the three-dimensional polynomial counterexample circumvents
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Vitushkin's 1999 paper constructs a non-injective rational self-map of C² with constant nonzero Jacobian
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