manYPoints – Table of Curves with Many Points
Entry details for q =
41
1
= 41
, g =
3
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Lower bound
N
min
= 78
Submitted by
C. Ritzenthaler
Date
06-25-2009
Reference
Jaap Top
Curves of genus 3 over small finite fields
Indag. Math. (N.S.) 14 (2003), no. 2, 275–283
Comments
This number of points is reached by the curve C: x^2*y^2 + z^2*(x^2+y^2)+a*(x^3*y+y^3*z+z^3*x)+b*(x^3*z+y^3*x+z^3*y)=0 with a=b=22.
Its Jacobian is isogenous to E^3 with trace(E)=-12 and S_3 is contained in the automorphism group of C.
Note that another curve is given in loc. cit. but this curve is not irreducible. The present one comes from a personal correspondence with Top.
Tags
Explicit curves
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Upper bound
N
max
= 78
Earlier entry
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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