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Lifting tropical self intersections

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abstract

We study the tropicalization of intersections of plane curves, under the assumption that they have the same tropicalization. We show that the set of tropical divisors that arise in this manner is a pure dimensional balanced polyhedral complex and compute its dimension. When the genus is at most 1, we show that all the tropical divisors that move in the expected dimension are realizable. As part of the proof, we introduce a combinatorial tool for explicitly constructing large families of realizable tropical divisors.

fields

math.AG 1

years

2019 1

verdicts

UNVERDICTED 1

representative citing papers

Tropical geometry

math.AG · 2019-08-19 · unverdicted · novelty 1.0

A pedagogical survey of tropical geometry covering tropical arithmetic, tropical varieties, duality, Bézout's theorem, and tropicalization, with no new research results.

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  • Tropical geometry math.AG · 2019-08-19 · unverdicted · none · ref 35 · internal anchor

    A pedagogical survey of tropical geometry covering tropical arithmetic, tropical varieties, duality, Bézout's theorem, and tropicalization, with no new research results.