Néron differential

From HandWiki

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

y2+a1xy+a3y=x3+a2x2+a4x+a6

the Néron differential is

dx2y+a1x+a3

References