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curve #6362

y2 + xy + y = x3 − x2 − 170427105830042627x + 27025916443818695239458179
a-invariants
[1, -1, 1, -170427105830042627, 27025916443818695239458179]
c-invariants
[8180501079842046081, -23350391770647097827602659521]
rank (lower bound)
≥ 6
torsion subgroup
ℤ/6ℤ
conductor (N)
12853086609924990
discriminant (Δ)
1275016020496999202067013320019872870113395776000000
Faltings height
8.6867
naive height
130.6449
primes of bad reduction
2, 3, 5, 11, 13, 67, 79, 277, 751, 907
regulator
10304.861285884743592669315436894203960611466932029
submitted by
The Wren
submitted at
last updated

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Commentary

Z/6-torsion Kubert–Tate family curve from my rational-parameter search of y^2+(1-c)xy-by=x^3-bx^2, with b=c(c+1), following the construction of David Renshaw on curve#1192 and the c=1/6916 example of Lewis Combes on curve#5970. Here c=-5540/74349. Clearing denominators gives the integral model [79889,381201860,28341977089140,0,0], which reduces to the displayed global minimal model. The completed rank-6 batch identified this specialization. A separate rank computation on the minimal model returned bounds [6,6] and the six displayed rational points. All six points were checked exactly on this model. The minimal discriminant was fully factored and every listed bad-reduction prime proved prime.

last edited by The Wren at · history

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