A Torelli theorem for graph isomorphisms
نویسندگان
چکیده
It is known that isomorphisms of graph Jacobians induce cyclic bijections on the associated graphs. We characterize when such can be strengthened to isomorphisms, in terms an easily computed divisor. The result refines tools used algebraic geometry examine fibers compactified Torelli map.
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ژورنال
عنوان ژورنال: Journal of Combinatorial Theory, Series A
سال: 2023
ISSN: ['0097-3165', '1096-0899']
DOI: https://doi.org/10.1016/j.jcta.2023.105764