Geodesic
Versal families of elliptic curves with rational 3-torsion
Sbornik. Mathematics, Tome 212 (2021) no. 3, pp. 274-287

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For an arbitrary field of characteristic different from 2 and 3, we construct versal families of elliptic curves whose 3-torsion is either rational or isomorphic to $\mathbb Z/3\mathbb Z\oplus \mu_3$ as a Galois module. Bibliography: 10 titles.
Keywords: elliptic curves
Mots-clés : torsion points, Galois modules. 
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     title = {Versal families of elliptic curves with rational 3-torsion},
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B. M. Bekker; Yu. G. Zarhin. Versal families of elliptic curves with rational 3-torsion. Sbornik. Mathematics, Tome 212 (2021) no. 3, pp. 274-287. http://geodesic.mathdoc.fr/item/SM_2021_212_3_a1/