We consider a question of describing the one-dimensional P-adic representations that lift a given representation over a finite field of the absolute Galois group of a function field. In this case, the characterization of abelian p-power extensions of fields of characteristic p can be extended to abe
Estimates for Coefficients ofL-Functions for Function Fields
β Scribed by Chih-Nung Hsu
- Publisher
- Elsevier Science
- Year
- 1999
- Tongue
- English
- Weight
- 136 KB
- Volume
- 5
- Category
- Article
- ISSN
- 1071-5797
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β¦ Synopsis
We consider the Dirichlet characters for polynomial rings % O [ΒΉ ] and the associated ΒΈ-functions. By Weil's result, the associated ΒΈ-functions are all polynomials. Applying Burgess' idea, we obtain an upper bound for the coefficients of these ΒΈ-functions. As an application, using our estimates, we obtain an upper bound for the degree of the fundamental unit in real quadratic function fields.
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