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curve #6520

y2 = x3 − 1228933723401892x + 17245329265705188865540
a-invariants
[0, 0, 0, -1228933723401892, 17245329265705188865540]
c-invariants
[58988818723290816, -14899964485569283179826560]
rank (lower bound)
≥ 16
torsion subgroup
trivial
conductor (N)
5993455125988316973121681639245851368904
discriminant (Δ)
-9691368991082100639001974237207427696706816768
Faltings height
7.5868
naive height
115.9268
primes of bad reduction
2, 13, 23, 697593857, 2866808023, 1252895426640035917
regulator
1725874704480.349550669375730202527098856933026432196558301668399029754
submitted by
Michael Rubinstein
submitted at
last updated

Witness: 16 independent points log in to add more points →

Commentary

Mestre ten-root construction, roots 0,20,44,87,88,91,102,124,146,168: 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 >= 16: the 16 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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