Entry details for q = 171 = 17, g = 5
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Lower bound Nmin = 51

Submitted by Everett Howe
Date 01-07-2022
Reference Not available
Comments
A search through the genus-5 double covers of genus-2 curves yielded the following example with 51 points:

y^2 = x^5 - 5*x^4 + x^3 + 4*x^2 + 8*x - 8
z^2 = x*y + x^4 - 7*x^3 + 6*x^2 - 8*x - 4
Tags Analysis and enumeration, Explicit curves

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Upper bound Nmax = 53

Submitted by Everett Howe
Date 04-14-2010
Reference Everett W. Howe, Kristin E. Lauter
New methods for bounding the number of points on curves over finite fields
Geometry and Arithmetic (C. Faber, G. Farkas, and R. de Jong, eds.), European Mathematical Society, 2012, pp. 173–212
Comments
A real Weil polynomial we don't know how to eliminate: (x + 7)^5
Tags None

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