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We give an explicit upper bound for the degree of a tropical basis of a homogeneous polynomial ideal. As an application f-vectors of tropical varieties are discussed. Various examples illustrate differences between Gr\"obner and tropical…

Commutative Algebra · Mathematics 2019-10-10 Michael Joswig , Benjamin Schröter

We show how tropical varieties of ideals I over a field K with non-trivial valuation can be traced back to tropical varieties of ideals in R[[t]][x] over some dense subring R in its ring of integers. Moreover, for homogeneous ideals, we…

Algebraic Geometry · Mathematics 2016-12-07 Thomas Markwig , Yue Ren

The tropical variety of a $d$-dimensional prime ideal in a polynomial ring with complex coefficients is a pure $d$-dimensional polyhedral fan. This fan is shown to be connected in codimension one. We present algorithmic tools for computing…

Algebraic Geometry · Mathematics 2009-12-16 Tristram Bogart , Anders Jensen , David Speyer , Bernd Sturmfels , Rekha Thomas

We describe the ideals, especially the prime ideals, of semirings of polynomials over layered domains, and in particular over supertropical domains. Since there are so many of them, special attention is paid to the ideals arising from…

Commutative Algebra · Mathematics 2011-11-29 Zur Izhakian , Louis Rowen

We introduce and study a special class of ideals, called tropical ideals, in the semiring of tropical polynomials, with the goal of developing a useful and solid algebraic foundation for tropical geometry. The class of tropical ideals…

Algebraic Geometry · Mathematics 2019-02-20 Diane Maclagan , Felipe Rincón

We present a simple and elementary procedure to sketch the tropical conic given by a degree--two homogeneous tropical polynomial. These conics are trees of a very particular kind. Given such a tree, we explain how to compute a defining…

Algebraic Geometry · Mathematics 2008-10-16 M. Ansola , M. J. de la Puente

Tropical ideals are a class of ideals in the tropical polynomial semiring that combinatorially abstracts the possible collections of supports of all polynomials in an ideal over a field. We study zero-dimensional tropical ideals I with…

Combinatorics · Mathematics 2021-02-23 Nicholas Anderson , Felipe Rincón

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 paper, the tropical differential Gr\"obner basis is studied, which is a natural generalization of the tropical Gr\"obner basis to the recently introduced tropical differential algebra. Like the differential Gr\"obner basis, the…

Symbolic Computation · Computer Science 2019-04-05 Youren Hu , Xiao-Shan Gao

In this paper, we study a class of toric ideals obtained by using some geometric data of ADE trees which are the minimal resolution graphs of rational surface singularities. We compute explicit Gr\"obner bases for these toric ideals that…

Commutative Algebra · Mathematics 2015-12-09 Gülay Kaya , Pınar Mete , Mesut Şahin

We present an algorithm for computing zero-dimensional tropical varieties using projections. Our main tools are fast unimodular transforms of lexicographical Gr\"obner bases. We prove that our algorithm requires only a polynomial number of…

Algebraic Geometry · Mathematics 2019-08-12 Paul Görlach , Yue Ren , Leon Zhang

Let K be a field equipped with a valuation. Tropical varieties over K can be defined with a theory of Gr{\"o}bner bases taking into account the valuation of K. While generalizing the classical theory of Gr{\"o}bner bases, it is not clear…

Symbolic Computation · Computer Science 2017-05-17 Tristan Vaccon , Kazuhiro Yokoyama

Tropical ideals, introduced in arXiv:1609.03838, define subschemes of tropical toric varieties. We prove that the top-dimensional parts of their varieties are balanced polyhedral complexes of the same dimension as the ideal. This means that…

Algebraic Geometry · Mathematics 2020-10-01 Diane Maclagan , Felipe Rincón

We explore the concept of real tropical basis of an ideal in the field of real Puiseux series. We show explicit tropical bases of zero-dimensional real radical ideals, linear ideals and hypersurfaces coming from combinatorial patchworking.…

Algebraic Geometry · Mathematics 2013-11-12 Luis Felipe Tabera

In this paper we give an elementary proof of the Fundamental Theorem of Algebra for polynomials over the rational tropical semi-ring. We prove that, tropically, the rational numbers are algebraically closed. We provide a simple algorithm…

Combinatorics · Mathematics 2007-07-18 Nathan Grigg , Nathan Manwaring

Let $K$ be a field equipped with a valuation. Tropical varieties over $K$ can be defined with a theory of Gr{\"o}bner bases taking into account the valuation of $K$.Because of the use of the valuation, the theory of tropical Gr{\"o}bner…

Symbolic Computation · Computer Science 2018-06-22 Tristan Vaccon , Thibaut Verron , Kazuhiro Yokoyama

We study the tropicalizations of analytic subvarieties of normal toric varieties over complete non-archimedean valuation fields. We show that a Zariski closed analytic subvariety of a normal toric variety is algebraic if its tropicalization…

Algebraic Geometry · Mathematics 2018-11-27 Ryota Mikami

In this paper, we survey and study definitions and properties of tropical polynomials, tropical rational functions and in general, tropical meromorphic functions, emphasizing practical techniques that can really carry out computations. For…

Algebraic Geometry · Mathematics 2011-01-17 Yen-lung Tsai

We give a description of the tropical variety of univariate polynomials of degree n having two double roots. As a set, it is given as the union of three types of maximal cones of dimension n-1, where only cones of two of these types are…

Algebraic Geometry · Mathematics 2016-09-13 Alicia Dickenstein , Maria Isabel Herrero , Luis Felipe Tabera

A "tropical ideal" is an ideal in the idempotent semiring of tropical polynomials that is also, degree by degree, a tropical linear space. We introduce a construction based on transversal matroids that canonically extends any principal…

Algebraic Geometry · Mathematics 2024-05-28 Alex Fink , Jeffrey Giansiracusa , Noah Giansiracusa , Joshua Mundinger
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