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Equidistribution of Weierstrass points on curves over non-Archimedean fields

Algebraic Geometry 2014-12-03 v1 Number Theory

Abstract

We prove equidistribution of Weierstrass points on Berkovich curves. Let XX be a smooth proper curve of positive genus over a complete algebraically closed non-Archimedean field KK of equal characteristic zero with a non-trivial valuation. Let LL be a line bundle of positive degree on XX. The Weierstrass points of powers of LL are equidistributed according to the Zhang-Arakelov measure on the analytification XanX^{an}. This provides a non-Archimedean analogue of a theorem of Mumford and Neeman. Along the way we provide a description of the reduction of Weierstrass points, answering a question of Eisenbud and Harris.

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Cite

@article{arxiv.1412.0926,
  title  = {Equidistribution of Weierstrass points on curves over non-Archimedean fields},
  author = {Omid Amini},
  journal= {arXiv preprint arXiv:1412.0926},
  year   = {2014}
}

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25 pages