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The prototypical examples of tropical compactifications are compactifications of complements of hyperplane arrangements, which posses a number of remarkable properties not satisfied by more general tropical compactifications of closed…

Algebraic Geometry · Mathematics 2024-11-25 Nolan Schock

We look at how one can construct from the data of a dimer model a Lagrangian submanifold in $(\mathbb{C}^*)^n$ whose valuation projection approximates a tropical hypersurface. Each face of the dimer corresponds to a Lagrangian disk with…

Symplectic Geometry · Mathematics 2021-01-13 Jeff Hicks

We present a new tool for the calculation of Denef and Loeser's motivic nearby fiber and motivic Milnor fiber: a motivic Fubini theorem for the tropicalization map, based on Hrushovski and Kazhdan's theory of motivic volumes of…

Algebraic Geometry · Mathematics 2019-09-18 Johannes Nicaise , Sam Payne

We construct a tropical analogue of the Poincar\'e bundle and prove a (cohomological) Fourier-Mukai transform for real tori with integral structures. We then prove a tropical analogue of Beauville's generalized Poincar\'e formula for…

Algebraic Geometry · Mathematics 2025-03-18 Soham Ghosh , Farbod Shokrieh

We study composed map germs with respect to their local fibrations. Under most general conditions, inspired by the tameness condition that was introduced recently, we prove the existence of singular tube fibrations, and we determine the…

Algebraic Geometry · Mathematics 2024-01-25 Ying Chen , Cezar Joiţa , Mihai Tibăr

In this work we explore the geometrical interpretation of gauge theories through the formalism of fiber bundles. Moreover, we conduct an investigation in the topology of fiber bundles, providing a proof of the Classification Theorem. In the…

Mathematical Physics · Physics 2007-05-23 Henrique de A. Gomes

Given an integral scheme X over a non-archimedean valued field k , we construct acuniversal closed embedding of X into a k-scheme equipped with a model over the field with one element (a generalization of a toric variety). An embedding into…

Algebraic Geometry · Mathematics 2022-08-10 Jeffrey Giansiracusa , Noah Giansiracusa

The recent two proofs for the (weak) factorization theorem for birational maps, one by W{\l}odarczyk and the other by Abramovich-Karu-Matsuki-W{\l}odarczyk rely on the results of Morelli. The former uses the process for…

Algebraic Geometry · Mathematics 2007-05-23 D. Abramovich , K. Matsuki , S. Rashid

Tropicalization is a procedure that assigns polyhedral complexes to algebraic subvarieties of a torus. If one fixes a weighted polyhedral complex, one may study the set of all subvarieties of a toric variety that have that complex as their…

Algebraic Geometry · Mathematics 2012-06-18 Eric Katz

We study some topological properties of trees with the interval topology. In particular, we characterize trees which admit a 2-fibered compactification and we present two examples of trees whose one-point compactifications are Rosenthal…

General Topology · Mathematics 2012-10-23 Wiesław Kubiś , Aníbal Moltó

A tropical expansion is a degeneration of a toroidal embedding, induced by a polyhedral subdivision of its tropicalisation. Each irreducible component of a tropical expansion admits a collapsing map down to a stratum of the original…

Algebraic Geometry · Mathematics 2025-11-21 Francesca Carocci , Navid Nabijou

Given a smooth complex toric variety we will compare real Lagerberg forms and currents on its tropicalization with invariant complex forms and currents on the toric variety. Our main result is a correspondence theorem which identifies the…

Algebraic Geometry · Mathematics 2021-02-16 J. I. Burgos Gil , W. Gubler , P. Jell , K. Künnemann

The algebraic foundation of tropical polynomial algebra provides the framework for the geometric construction of the supplement and the reversal of tropical varieties, thereby inducing a duality of reduced tropical varieties; for classes of…

Algebraic Geometry · Mathematics 2008-11-04 Zur Izhakian , Louis Rowen

The goal of this paper is to put the theory of approximate fibrations into the framework of higher topos theory. We define the notion of an approximate fibration for a general geometric morphism of $\infty$-topoi, give several…

Geometric Topology · Mathematics 2025-10-29 Christian Kremer , Marco Volpe

The concepts of tropical-semiring and tropical hypersurface, are extended for an arbitrary ordered group. Then, we define the tropicalization of a polynomial with coefficients in a Krull-valued field. After a close study of the properties…

Algebraic Geometry · Mathematics 2009-04-01 Fuensanta Aroca

Splice type surface singularities were introduced by Neumann and Wahl as a generalization of the class of Pham-Brieskorn-Hamm complete intersections of dimension two. Their construction depends on a weighted tree called a splice diagram. In…

Algebraic Geometry · Mathematics 2023-12-22 Maria Angelica Cueto , Patrick Popescu-Pampu , Dmitry Stepanov

We consider the tropicalization of tangent lines to a complete intersection curve $X$ in $\mathbb{P}^n$. Under mild hypotheses, we describe a procedure for computing the tropicalization of the image of the Gauss map of $X$ in terms of the…

Algebraic Geometry · Mathematics 2022-05-20 Nathan Ilten , Yoav Len

Already for bivariate tropical polynomials, factorization is an NP-Complete problem. In this paper, we give an efficient algorithm for factorization and rational factorization of a rich class of tropical polynomials in $n$ variables.…

Combinatorics · Mathematics 2019-12-10 Bo Lin , Ngoc Mai Tran

In this paper, we study tropicalisations of singular surfaces in toric threefolds. We completely classify singular tropical surfaces of maximal-dimensional type, show that they can generically have only finitely many singular points, and…

Algebraic Geometry · Mathematics 2013-09-04 Hannah Markwig , Thomas Markwig , Eugenii Shustin

In this paper, we study tropicalisations of families of curves with a singularity in a fixed point. The tropicalisation of such a family is a linear tropical variety. We describe its maximal dimensional cones using results about linear…

Algebraic Geometry · Mathematics 2012-03-27 Hannah Markwig , Thomas Markwig , Eugenii Shustin