Twisted exponential sums of polynomials in one variable

Details Twisted exponential sums of polynomials in one variable Twisted exponential sums of polynomials in one variable

2009-12-10

arxiv.org/abs/0912.1929v1

Mathematics

Number Theory

Scientific paper

The twisted $T$-adic exponential sum associated to a polynomial in one variable is studied. An explicit arithmetic polygon in terms of the highest two exponents of the polynomial is proved to be a lower bound of the Newton polygon of the $C$-function of the twisted T-adic exponential sum. This bound gives lower bounds for the Newton polygon of the $L$-function of twisted $p$-power order exponential sums.

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