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arXiv · 2201.06613

On the two-dimensional Jacobian conjecture: Magnus' formula revisited, I

William E. Hurst·Kyungyong Lee·Li Li·George D. Nasr
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Abstract

Let $K$ be an algebraically closed field of characteristic 0. When the Jacobian $({\partial f}/{\partial x})({\partial g}/{\partial y}) - ({\partial g}/{\partial x})({\partial f}/{\partial y})$ is a constant for $f,g\in K[x,y]$, Magnus' formula from [A. Magnus, Volume preserving transformations in several complex variables, Proc. Amer. Math. Soc. 5 (1954), 256--266] describes the relations between the homogeneous degree pieces $f_i$'s and $g_i$'s. We show a more general version of Magnus' formula and prove a special case of the two-dimensional Jacobian conjecture as its application.

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William E. Hurst, Kyungyong Lee, Li Li, George D. Nasr. 2022-01-17. On the two-dimensional Jacobian conjecture: Magnus' formula revisited, I. https://arxiv.org/abs/2201.06613

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