In mathematics, a Néron differential, named after André Néron, is an almost canonical choice of 1-form on an elliptic curve or abelian variety defined over a local field or global field. The Néron differential behaves well on the Néron minimal models.

For an elliptic curve of the form

${\displaystyle y^{2}+a_{1}xy+a_{3}y=x^{3}+a_{2}x^{2}+a_{4}x+a_{6}}$

the Néron differential is

${\displaystyle {\frac {dx}{2y+a_{1}x+a_{3}}}}$

• Bosch, Siegfried; Lütkebohmert, Werner; Raynaud, Michel (1990), Néron models, Ergebnisse der Mathematik und ihrer Grenzgebiete (3), vol. 21, Berlin, New York: Springer-Verlag, ISBN  978-3-540-50587-7, MR  1045822
• Néron, André (1964), "Modèles minimaux des variétés abéliennes sur les corps locaux et globaux", Publications Mathématiques de l'IHÉS, 21: 5–128, doi: 10.1007/BF02684271, MR  0179172, S2CID  120802890

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