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curve #6529

y2 = x3 − x2 − 122228349470985x + 527294010755472476121
a-invariants
[0, -1, 0, -122228349470985, 527294010755472476121]
c-invariants
[5866960774607296, -455581990090963571724800]
rank (lower bound)
≥ 15
torsion subgroup
trivial
conductor (N)
1826808848768856518007197023931144064
discriminant (Δ)
-3244763262712452796432239296330306637324288
Faltings height
6.9578
naive height
108.9517
primes of bad reduction
2, 3, 11, 29, 503, 29648533316312556317125931453
regulator
401989327481.93567156628280654861707814682180850238022777544453261494
submitted by
Michael Rubinstein
submitted at
last updated

Witness: 15 independent points log in to add more points →

Commentary

Mestre ten-root construction, roots 0,1,23,34,57,76,95,105,193,198: with p(x) = prod (x - a_i), write p = q^2 - r with q a monic quintic and deg r <= 4; the genus-one curve y^2 = r(x) carries the ten points (a_i, q(a_i)), and the curve submitted is the minimal Weierstrass model of its Jacobian. Found by enumerating integer ten-root sets 0 = a_1 < ... < a_10 and scoring each by S = sum of -a_p log(p)/p over the good primes 5 <= p <= 199 (with early abort on low partial sums); for the sets with S >= 31, or S >= 30 and one bad prime in that range, or S >= 29 and two or more bad primes, rational points were found by a point search on the quartic y^2 = r(x), and the curves were screened by conductor and by a GRH explicit-formula upper bound on the rank. Rank >= 15: the 15 listed points come from the point search and are independent (height matrix nonsingular at 57 and 115 digits). Torsion trivial.

last edited by Michael Rubinstein at · history

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