Entry details for q = 113 = 1331, g = 3
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Lower bound Nmin = 1548

Submitted by C. Ritzenthaler
Date 02-20-2009
Reference Everett W. Howe, Franck Leprévost, Bjorn Poonen
Large torsion subgroups of split Jacobians of curves of genus two or three
Forum Math. 12 (2000), no. 3, 315–364
Comments
Explicit curve C given by
(a^2+8)*(x^4+y^4+z^4)+(2+3*a)*(x^2*y^2+x^2*z^2+y^2*z^2) where a is solution of u^3+2*u+9=0 in GF(11^3). It was found using the explicit computations of loc. cit. with the elliptic curve E : y^2+x*y=x^3+10*x+7.
Hence the Jacobian of C is a quotient of E^3 by a rational (2,2,2)-subgroup.
The geometric group of automorphism of C is S_4.
Tags Explicit curves

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Upper bound Nmax = 1548

Submitted by Everett Howe
Date 06-10-2010
Reference Jean-Pierre Serre
Sur le nombre de points rationnels d'une courbe algébrique sur un corps fini
C. R. Acad. Sci. Paris Sér. I Math. 296 (1983), 397–402. (= Œuvres III, No. 128, 658–663).
Comments
The Hasse-Weil-Serre bound
Tags Hasse-Weil-Serre bound

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