On Fq3 -Frobenius nonclassical curvces of type Yq2+q+1 = f (X) and the Hasse-Witt invariant for a class of Kummer extension
Inserted in the context of algebraic curves defined over finite fields, this work presents several results in two different topics. First, it gives a complete characterization of the Fq3 -Frobenius nonclassical curves of type Yq2+q+1 = f (X), and it provides an explicit computation of the following...
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| Tipo de recurso: | tesis doctoral |
| Estado: | Versión publicada |
| Fecha de publicación: | 2020 |
| País: | Brasil |
| Institución: | Universidade de São Paulo (USP) |
| Repositorio: | Biblioteca Digital de Teses e Dissertações da USP |
| Idioma: | inglés |
| OAI Identifier: | oai:teses.usp.br:tde-10062020-134739 |
| Acceso en línea: | https://www.teses.usp.br/teses/disponiveis/55/55135/tde-10062020-134739/ |
| Access Level: | acceso abierto |
| Palabra clave: | α-number Automorphism group Curvas Frobenius não-classicas Curvas hiperelípticas Frobenius nonclassical curves Grupo de automorfismo Hasse-Witt invariant Hyperelliptic curves Invariante de Hasse-Witt |
| Sumario: | Inserted in the context of algebraic curves defined over finite fields, this work presents several results in two different topics. First, it gives a complete characterization of the Fq3 -Frobenius nonclassical curves of type Yq2+q+1 = f (X), and it provides an explicit computation of the following birational invariants: genus, automorphism group, Hasse-Witt invariant and a-number. The number of Fq3 -rational points is computed as well. Second, this work provides an extensive study of the Hasse-Witt invariant of the curves Ym +Xn +1 = 0 and Ym +Xn +X = 0. A combinatorial formula for this invariant is presented in the general case, and explicit closed formulas are provided for special values of m and n. |
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