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arXiv · 1703.08312

On the linear bounds on genera of pointless hyperelliptic curves

Ivan Pogildiakov
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Abstract

An irreducible smooth projective curve over $\mathbb{F}\_q$ is called \textit{pointless} if it has no $\mathbb{F}\_q$-rational points. In this paper we study the lower existence bound on the genus of such a curve over a fixed finite field $\mathbb{F}\_q$. Using some explicit constructions of hyperelliptic curves, we establish two new bounds that depend linearly on the number $q$. In the case of odd characteristic this improves upon a result of R. Becker and D. Glass. We also provide a similar new bound when $q$ is even.

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Ivan Pogildiakov. 2017-03-24. On the linear bounds on genera of pointless hyperelliptic curves. https://arxiv.org/abs/1703.08312

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