English

The Weierstrass semigroups on double covers of genus two curves

Algebraic Geometry 2013-11-19 v1

Abstract

We show that three numerical semigroups <5,6,7,8>, <3,7,8 > and <3,5> are of double covering type, i.e., the Weierstrass semigroups of ramification points on double covers of curves. Combining this with the results of Oliveira-Pimentel and Komeda we can determine the Weierstrass semigroups of the ramification points on double covers of genus two curves.

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Cite

@article{arxiv.1311.4143,
  title  = {The Weierstrass semigroups on double covers of genus two curves},
  author = {Takeshi Harui and Jiryo Komeda and Akira Ohbuchi},
  journal= {arXiv preprint arXiv:1311.4143},
  year   = {2013}
}

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5 pages