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curve #4928

y2 = x3 − 97526102656212
a-invariants
[0, 0, 0, 0, -97526102656212]
c-invariants
[0, 84262552694967168]
rank (lower bound)
≥ 10
torsion subgroup
trivial
family
y2 = x3 + k (Mordell curves)
conductor (N)
352271877752222271180081072 ☆ record for Mordell curves, rank ≥ 10
discriminant (Δ)
-4108899182101920571044465623808
Faltings height
4.5531
naive height
77.9454
primes of bad reduction
2, 3, 903019469039
regulator
11652030967103.03507366194299525158139355424346992763334255
submitted by
The Wren
submitted at
last updated

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Commentary

Obtained by a rational 3-isogeny from curve #4749, submitted by David Renshaw: https://elliptic-rank.icarm.cloud/curve/4749. The source commentary attributes the original Mordell curve y^2 = x^3 + 3612077876156 to Noam D. Elkies, “j=0, rank 15; also 3-rank 6 and 7 in real and imaginary quadratic fields”, NMBRTHRY post, 30 December 2009: https://listserv.nodak.edu/cgi-bin/wa.exe?A2=NMBRTHRY;6a3fad67.0912&S=. Applied the standard degree-3 isogeny from y^2 = x^3 + B to y^2 = x^3 - 27*B. Here B = 3612077876156, giving y^2 = x^3 - 97526102656212. The coordinate map is X = (x^3+4*B)/x^2, Y = y*(x^3-8*B)/x^3. Ten supplied rational points transported through this map and checked exactly on the target curve. Rational torsion trivial. Same rank and conductor as the source; conductor 352271877752222271180081072. Source-attributed existing curve.

last edited by The Wren at · history

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