paper

Lifting divisors on a generic chain of loops

arXiv:1404.4001 · doi:10.4153/CMB-2014-050-2

Abstract

Let C be a curve over a complete valued field with infinite residue field whose skeleton is a chain of loops with generic edge lengths. We prove that any divisor on the chain of loops that is rational over the value group lifts to a divisor of the same rank on C, confirming a conjecture of Cools, Draisma, Robeva, and the third author.

14 pages, 3 figures v2: minor changes, to appear in Canadian Mathematical Bulletin

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