Commentary history

1 edit.

David Renshaw · 2026-09-26 20:24:43 UTC

Cremona 21945l2 = LMFDB 21945.l4: https://www.lmfdb.org/EllipticCurve/Q/21945/l/4 Mordell–Weil rank exactly 2 (Cremona's tables). Conductor 21945, minimal discriminant 4733106325880625, torsion ℤ/2ℤ × ℤ/4ℤ. The witnesses are the generators from Cremona's tables.