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Abstract We compute moments of L-functions associated to the polynomial family of Artin–Schreier covers over Fq, where q is a power of a prime p 2, when the size of the finite field is fixed and the genus of the family goes to infinity. More specifically, we compute the kth moment for a large range of values of k, depending on the sizes of p and q. We also compute the second moment in absolute value of the polynomial family, obtaining an exact formula with a lower order term, and confirming the unitary symmetry type of the family.
Florea et al. (Thu,) studied this question.