Equations of tropical varieties

J Giansiracusa, N Giansiracusa - 2016 - projecteuclid.org
We introduce a scheme-theoretic enrichment of the principal objects of tropical geometry.
Using a category of semiring schemes, we construct tropical hypersurfaces as schemes over …

A moduli stack of tropical curves

R Cavalieri, M Chan, M Ulirsch, J Wise - Forum of Mathematics …, 2020 - cambridge.org
We contribute to the foundations of tropical geometry with a view toward formulating tropical
moduli problems, and with the moduli space of curves as our main example. We propose a …

The universal tropicalization and the Berkovich analytification

J Giansiracusa, N Giansiracusa - Kybernetika, 2022 - dml.cz
Given an integral scheme $ X $ over a non-archimedean valued field $ k $, we construct a
universal closed embedding of $ X $ into a $ k $-scheme equipped with a model over the …

Linear degenerate tropical flag varieties

A Borzì, V Schleis - arxiv preprint arxiv:2308.04193, 2023 - arxiv.org
We study linear degenerations of flag varieties from the point of view of tropical geometry.
We define the linear degenerate flag Dressian and prove a correspondence between: $(a) …

Tropical vector bundles

B Khan, D Maclagan - arxiv preprint arxiv:2405.03505, 2024 - arxiv.org
The goal of this paper is to introduce a construction of a vector bundle on a tropical variety.
When the base is a tropical toric variety these tropicalize toric vector bundles, and are …

The topological shadow of -geometry: congruence spaces

O Lorscheid, S Ray - Mathematische Zeitschrift, 2024 - Springer
In this paper we introduce congruence spaces, which are topological spaces that are
canonically attached to monoid schemes and that reflect closed topological properties. This …

for Everyone

O Lorscheid - Jahresbericht der Deutschen Mathematiker …, 2018 - Springer
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Principal bundles on metric graphs: The GLn case

A Gross, M Ulirsch, D Zakharov - Advances in Mathematics, 2022 - Elsevier
Using the notion of a root datum of a reductive group G we propose a tropical analogue of a
principal G-bundle on a metric graph. We focus on the case G= GL n, ie the case of vector …

Varieties of tropical ideals are balanced

D Maclagan, F Rincón - Advances in Mathematics, 2022 - Elsevier
Abstract Tropical ideals, introduced in [12], define subschemes of tropical toric varieties. We
prove that the top-dimensional parts of their varieties are balanced polyhedral complexes of …

The Fundamental theorem of tropical differential algebra over nontrivially valued fields and the radius of convergence of nonarchimedean differential equations

S Mereta, F Gallinaro - arxiv preprint arxiv:2303.12124, 2023 - arxiv.org
We prove a fundamental theorem for tropical partial differential equations analogue of the
fundamental theorem of tropical geometry in this context. We extend results from Aroca et al …