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In classical geometry, a linear space is a space that is closed under linear combinations. In tropical geometry, it has long been a consensus that tropical varieties defined by valuated matroids are the tropical analogue of linear spaces.…

Algebraic Geometry · Mathematics 2015-05-11 Simon Hampe

We formulate and prove an analogue of the balancing condition for the tropicalization of a curve in a torus bundle $X$. We find that the usual balancing condition fails when the bundle is non-trivial and that the failure is captured by the…

Algebraic Geometry · Mathematics 2025-09-04 Emily Dodwell

We define vector bundles for tropical schemes, and explore their properties. The paper largely consists of three parts; (1) we study free modules over zero-sum free semirings, which provide the necessary algebraic background for the theory…

Algebraic Geometry · Mathematics 2023-10-31 Jaiung Jun , Kalina Mincheva , Jeffrey Tolliver

We state the fundamental theorem of projective geometry for semimodules over semirings, which is facilitated by recent work in the study of bases in semimodules defined over semirings. In the process we explore in detail the linear algebra…

Algebraic Geometry · Mathematics 2021-08-05 Ayush Kumar Tewari

In this paper, the tropical Nevanlinna theory is extended for piecewise polynomial continuous functions. By constructing the $n$-th Poisson-Jensen formula, the $n$-th tropical counting, proximity, and characteristic functions are…

Algebraic Geometry · Mathematics 2026-02-04 Risto Korhonen , Chengliang Tan

This survey consists of two parts. Part 1 is devoted to amoebas. These are images of algebraic subvarieties in the complex torus under the logarithmic moment map. The amoebas have essentially piecewise-linear shape if viewed at large.…

Algebraic Geometry · Mathematics 2007-05-23 Grigory Mikhalkin

In this paper we give an interpretation to the boundary points of the compactification of the parameter space of convex projective structures on an n-manifold M. These spaces are closed semi-algebraic subsets of the variety of characters of…

Geometric Topology · Mathematics 2014-10-01 Daniele Alessandrini

We describe the tropical curves in toric varieties and define the tropical Gromov-Witten invariants. We introduce amplitudes for the higher topological quantum mechanics (HTQM) on special trees and show that the amplitudes are equal to the…

High Energy Physics - Theory · Physics 2024-08-06 Andrey Losev , Vyacheslav Lysov

Tropical geometry has recently found several applications in the analysis of neural networks with piecewise linear activation functions. This paper presents a new look at the problem of tropical polynomial division and its application to…

Machine Learning · Computer Science 2023-06-28 Ioannis Kordonis , Petros Maragos

We define tropical Psi-classes on the moduli space of rational tropical curves in R^2 and consider intersection products of Psi-classes and pull-backs of evaluations on this space. We show a certain WDVV equation which is sufficient to…

Algebraic Geometry · Mathematics 2009-11-29 Hannah Markwig , Johannes Rau

We prove a $q$-refined tropical correspondence theorem for higher genus descendant logarithmic Gromov--Witten invariants with a $\lambda_g$ class in toric surfaces. Specifically, a generating series of such logarithmic Gromov--Witten…

Algebraic Geometry · Mathematics 2024-12-06 Patrick Kennedy-Hunt , Qaasim Shafi , Ajith Urundolil Kumaran

We introduce a generalization of tropical polyhedra able to express both strict and non-strict inequalities. Such inequalities are handled by means of a semiring of germs (encoding infinitesimal perturbations). We develop a tropical…

Combinatorics · Mathematics 2015-01-05 Xavier Allamigeon , Uli Fahrenberg , Stéphane Gaubert , Ricardo D. Katz , Axel Legay

We consider multidimensional optimization problems, which are formulated and solved in terms of tropical mathematics. The problems are to minimize (maximize) a linear or nonlinear function defined on vectors over an idempotent semifield,…

Optimization and Control · Mathematics 2024-01-18 N. Krivulin

We prove that every curve on a rationally connected variety is algebraically equivalent to a (non-effective) integral sum of rational curves.

Algebraic Geometry · Mathematics 2015-02-23 Hong R. Zong

Duality of curves is one of the important aspects of the ``classical'' algebraic geometry. In this paper, using this foundation, the duality of tropical polynomials is constructed to introduce the duality of Non-Archimedean curves. Using…

Algebraic Geometry · Mathematics 2007-05-23 Zur Izhakian

We investigate necessary as well as sufficient conditions under which the Laurent series coefficients $f_{\boldsymbol{n}}$ associated to a multivariate rational function satisfy Gauss congruences, that is $f_{\boldsymbol{m}p^r} \equiv…

Number Theory · Mathematics 2017-10-03 Frits Beukers , Marc Houben , Armin Straub

The main result of this paper is a formula for the limit cycle of a 1-parameter family of subvarieties of a tropical compactification, expressed in terms of tropical intersections. Our theorem generalizes results of…

Algebraic Geometry · Mathematics 2026-04-20 Sean T. Griffin , Jake Levinson , Rohini Ramadas , Rob Silversmith

A dot-product representation of a graph is a mapping of its vertices to vectors of length $k$ so that vertices are adjacent if and only if the inner product (a.k.a. dot product) of their corresponding vertices exceeds some threshold.…

Combinatorics · Mathematics 2024-02-26 Sean Bailey , David Brown , Michael Snyder , Nicole Turner

From Euclid's fundamental formula for the Pythagorean triples we define the rational triples relating certain congruent numbers by an identity and explore their relationships. We introduce two geometric methods relating the congruent number…

General Mathematics · Mathematics 2021-12-20 G. Jacob Martens

We establish first parts of a tropical intersection theory. Namely, we define cycles, Cartier divisors and intersection products between these two (without passing to rational equivalence) and discuss push-forward and pull-back. We do this…

Algebraic Geometry · Mathematics 2012-11-07 Lars Allermann , Johannes Rau
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