THE RTUMBER OF POINTS ON CERTAIN ALGEBRAIC CURVES OVER FINITE FIELDS
I. Wolfmann · 1989
M7e determine the number of rational points of the algebraic plane curve defined over Fqk by the equation yq - y = ax3 + b. aeF;,, beF,k, for even 1,- and special integers s . \Ye deduce examples of curves reaching the !VEIL bound and the values of certain character sums.