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math.NT2010
Estimates for exponential sums with a large automorphism group
Antonio Rojas-León
We prove some improvements of the classical Weil bound for one variable additive and multiplicative character sums associated to a polynomial over a finite field $k=\Fq$ for two cl…
math.NT2010★ 3 cited
Rationality of trace and norm L-functions
Antonio Rojas-León
For a given l-adic sheaf F on a commutative algebraic group over a finite field k and an integer r we define the r-th local norm L-function of F at a point t in G(k) and prove its…