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Let $K$ be a real closed field with a nontrivial non-archimedean absolute value. We study a refined version of the tropicalization map, which we call real tropicalization map, that takes into account the signs on $K$. We study images of…

Algebraic Geometry · Mathematics 2020-04-29 Philipp Jell , Claus Scheiderer , Josephine Yu

Let $X$ be a closed algebraic subset of $\mathbb{A}^{n}(K)$ where $K$ is an algebraically closed field complete with respect to a nontrivial non-Archimedean valuation. We show that there is a surjective continuous map from the Berkovich…

Algebraic Geometry · Mathematics 2015-11-05 Mustafa Hakan Gunturkun , Ali Ulas Ozgur Kisisel

Let $X$ be a spherical variety. We show that Tevelev and Vogiannou's tropicalization map from $X$ to its tropicalization factors through the Berkovich analytification $X^{\text{an}}$, as in the case for toric varieties. Furthermore we show…

Algebraic Geometry · Mathematics 2023-02-03 Desmond Coles

We introduce adic tropicalizations for subschemes of toric varieties as limits of Gubler models associated to polyhedral covers of the ordinary tropicalization. Our main result shows that Huber's adic analytification of a subscheme of a…

Algebraic Geometry · Mathematics 2025-01-23 Tyler Foster , Sam Payne

For a connected smooth projective curve $X$ of genus $g$, global sections of any line bundle $L$ with $\deg(L) \geq 2g+ 1$ give an embedding of the curve into projective space. We consider an analogous statement for a Berkovich skeleton in…

Algebraic Geometry · Mathematics 2017-04-07 Shu Kawaguchi , Kazuhiko Yamaki

The tropicalization of an algebraic variety X is a combinatorial shadow of X, which is sensitive to a closed embedding of X into a toric variety. Given a good embedding, the tropicalization can provide a lot of information about X. We…

Algebraic Geometry · Mathematics 2020-06-30 Philipp Jell

In this paper, we introduce ordered blueprints and ordered blue schemes, which serve as a common language for the different approaches to tropicalizations and which enhances tropical varieties with a schematic structure. As an abstract…

Algebraic Geometry · Mathematics 2022-06-03 Oliver Lorscheid

We construct a general framework for tropical differential equations based on idempotent semirings and an idempotent version of differential algebra. Over a differential ring equipped with a non-archimedean norm enhanced with additional…

Algebraic Geometry · Mathematics 2023-06-02 Jeffrey Giansiracusa , Stefano Mereta

Let $G$ be a connected reductive algebraic group over an algebraically closed field of characteristic zero carrying the trivial valuation. In this article we discuss two candidates for what could be the tropicalization of $G$. Our first…

Algebraic Geometry · Mathematics 2025-03-28 Desmond Coles , Martin Ulirsch

This paper provides an overview of recent progress on the interplay between tropical geometry and non-archimedean analytic geometry in the sense of Berkovich. After briefly discussing results by Baker, Payne and Rabinoff in the case of…

Algebraic Geometry · Mathematics 2015-06-17 Annette Werner

In this text, we merge ideas around the tropical hyperfield with the theory of ordered blueprints to give a new formulation of tropical scheme theory. The key insight is that a nonarchimedean absolute value can be considered as a morphism…

Algebraic Geometry · Mathematics 2022-04-20 Oliver Lorscheid

We review the basic theory of bands and band schemes introduced by Baker-Jin-Lorscheid, which is an algebraic framework for tropicalization, analytification, and $\mathbb{F}_1$-geometry. For an affine scheme $X$ over a non-Archimedean…

Algebraic Geometry · Mathematics 2026-05-11 Arne Kuhrs , Alejandro Martínez Méndez , Pedro Souza

Let $K$ be a complete, algebraically closed non-archimedean field with ring of integers $K^\circ$ and let $X$ be a $K$-variety. We associate to the data of a strictly semistable $K^\circ$-model $\mathscr X$ of $X$ plus a suitable horizontal…

Algebraic Geometry · Mathematics 2016-03-01 Walter Gubler , Joseph Rabinoff , Annette Werner

In this paper, we study the interplay between tropical and analytic geometry for closed subschemes of toric varieties. Let $K$ be a complete non-Archimedean field, and let $X$ be a closed subscheme of a toric variety over $K$. We define the…

Algebraic Geometry · Mathematics 2017-01-12 Walter Gubler , Joseph Rabinoff , Annette Werner

We give general criteria under which the limit of a system of tropicalizations of a scheme over a nonarchimedean field is homeomorphic to the analytification of the scheme. As an application, we show that the analytification of an arbitrary…

Algebraic Geometry · Mathematics 2016-04-19 Tyler Foster , Philipp Gross , Sam Payne

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 idempotent semirings such as $\mathbb{T} = (\mathbb{R}\cup…

Algebraic Geometry · Mathematics 2017-02-22 Jeffrey Giansiracusa , Noah Giansiracusa

In this article we study the tropicalization of the Hilbert scheme and its suitability as a parameter space for tropical varieties. We prove that the points of the tropicalization of the Hilbert scheme have a tropical variety naturally…

Algebraic Geometry · Mathematics 2018-09-25 Daniele Alessandrini , Michele Nesci

We introduce extended tropicalizations for closed subvarieties of toric varieties and show that the analytification of a quasprojective variety over a nonarchimedean field is naturally homeomorphic to the inverse limit of the…

Algebraic Geometry · Mathematics 2010-07-09 Sam Payne

The first steps in defining tropicalization for spherical varieties have been taken in the last few years. There are two parts to this theory: tropicalizing subvarieties of homogeneous spaces and tropicalizing their closures in spherical…

Algebraic Geometry · Mathematics 2018-02-22 Evan D. Nash

Let $X$ be an algebraic variety and let $S$ be a tropical variety associated to $X$. We study the tropicalization map from the moduli space of stable maps into $X$ to the moduli space of tropical curves in $S$. We prove that it is a…

Algebraic Geometry · Mathematics 2016-08-01 Tony Yue Yu
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