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Revista Colombiana de Matemáticas

Print version ISSN 0034-7426

Rev.colomb.mat. vol.53  supl.1 Bogotá Dec. 2019  Epub Mar 24, 2020

https://doi.org/10.15446/recolma.v53nsupl.84089 

Artículos originales

On space maximal curves

Sobre curvas maximales en el espacio

Paulo César Oliveira1  * 

Fernando Torres2 

1 Universidade Regional do Cariri, Brazil

2 Universidade Estadual de Campinas, Brazil


Abstract:

Any maximal curve X is equipped with an intrinsic embedding π: X → ℙr which reveal outstanding properties of the curve. By dealing with the contact divisors of the curve π(X) and tangent lines, in this paper we investigate the first positive element that the Weierstrass semigroup at rational points can have whenever r = 3 and π(X) is contained in a cubic surface.

Keywords: finite fields; Stöhr-Voloch theory; Hasse-Weil bound; maximal curve

Resumen:

Toda curva maximal X está intrínsicamente dotada de un mergullo π: X →r el cual vislumbra propiedades cruciales de la curva. Para r = 3, considerando los divisores de contacto de la curva π(X) y rectas tangentes, investigamos el posible primer elemento positivo que un semigrupo de Weierstrass en un punto racional puede tener en el caso que π(X) esté contenida en una superficie cúbica.

Palabras clave: finitos; teoría de Stöhr-Voloch; cota de Hasse-Weil; curva maximal

Text complete and PDF

Acknowledgment.

This paper is based on the Ph.D. dissertation [20] done at IMECC-UNICAMP. The second author was partially supported by CNPq (Grant 310623/2017-0). We also gratefully thank James W.P. Hirschfeld for useful comments.

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Received: August 07, 2018; Accepted: November 16, 2018

*Correspondencia: Paulo César Oliveira, Departamento de Matemática Pura e Aplicada, Universidade Regional do Cariri, Centro de Ciências e Tecnologia, Av. Leão Sampaio, 107, Triângulo, 63.040-000, Juazeiro do Norte, CE, Brazil. Correo electrónico: paulocesar.oliveira@urca.br. DOI: https://doi.org/10.15446/recolma.v53nsupl.84089

2010 Mathematics Subject Classification. 53C21, 53C42

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