2 8 A ug 1 99 9 Coverings of curves with asymptotically many rational points ∗
نویسندگان
چکیده
The number A(q) is the upper limit of the ratio of the maximum number of points of a curve defined over Fq to the genus. By constructing class field towers with good parameters we present improvements of lower bounds of A(q) for q an odd power of a prime.
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