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相关论文: A note on tropical triangles in the plane

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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…

代数几何 · 数学 2007-05-23 Zur Izhakian

This is a foundational paper in tropical linear algebra, which is linear algebra over the min-plus semiring. We introduce and compare three natural definitions of the rank of a matrix, called the Barvinok rank, the Kapranov rank and the…

组合数学 · 数学 2007-05-23 M. Develin , F. Santos , B. Sturmfels

We introduce a sheaf-theoretic approach to tropical homology, especially for tropical homology with potentially non-compact supports. Our setup is suited to study the functorial properties of tropical homology, and we show that it behaves…

代数几何 · 数学 2019-06-24 Andreas Gross , Farbod Shokrieh

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…

代数几何 · 数学 2020-10-01 Diane Maclagan , Felipe Rincón

The growth of tropical geometry has generated significant interest in the tropical semiring in the past decade. However, there are other semirings in tropical algebra that provide more information, such as the symmetrized (max, +),…

交换代数 · 数学 2018-10-09 Sara Kalisnik Verovsek , Davorin Lesnik

A Tangle is a smooth simple closed curve formed from arcs (or ``links'') of circles with fixed radius. Most previous study of Tangles has dealt with the case where these arcs are quarter-circles, but Tangles comprised of thirds and sixths…

组合数学 · 数学 2024-06-03 Rebecca M. Bowen , Sadie Pruitt , Douglas A. Torrance

We study the max-plus or tropical analogue of the notion of polar: the polar of a cone represents the set of linear inequalities satisfied by its elements. We establish an analogue of the bipolar theorem, which characterizes all the…

度量几何 · 数学 2009-07-23 Stéphane Gaubert , Ricardo D. Katz

The tropical Grassmannian parameterizes tropicalizations of linear spaces, while the Dressian parameterizes all planes in $\TP^{n-1}$. We study these parameter spaces and we compute them explicitly for $n \leq 7$. Planes are identified with…

组合数学 · 数学 2014-12-23 Sven Herrmann , Anders Jensen , Michael Joswig , Bernd Sturmfels

We prove a correspondence theorem for singular tropical surfaces in real three space, which recovers singular algebraic surfaces in an appropriate toric three-fold that tropicalize to a given singular tropical surface. Furthermore, we…

代数几何 · 数学 2018-08-24 Hannah Markwig , Thomas Markwig , Eugenii Shustin

After endowing the space of diagrams of probability spaces with an entropy distance, we study its large-scale geometry by identifying the asymptotic cone as a closed convex cone in a Banach space. We call this cone the tropical cone, and…

动力系统 · 数学 2019-05-17 Rostislav Matveev , Jacobus W. Portegies

We study tropical line arrangements associated to a three-regular graph $G$ that we refer to as \emph{tropical graph curves}. Roughly speaking, the tropical graph curve associated to $G$, whose genus is $g$, is an arrangement of $2g-2$…

代数几何 · 数学 2026-01-14 Madhusudan Manjunath

We exploit three classical characterizations of smooth genus two curves to study their tropical and analytic counterparts. First, we provide a combinatorial rule to determine the dual graph of each algebraic curve and the metric structure…

代数几何 · 数学 2018-10-25 Maria Angelica Cueto , Hannah Markwig

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…

代数几何 · 数学 2024-11-25 Nolan Schock

We develop the basic and new tools for classifying non-side-to-side tilings of the sphere by congruent triangles. Then we prove that, if the triangle has any irrational angle in degree, such tilings are: a sequence of 1-parameter families…

组合数学 · 数学 2025-05-23 Wen Chen , Jinjin Liang , Erxiao Wang

This paper introduces a new structure of commutative semiring, generalizing the tropical semiring, and having an arithmetic that modifies the standard tropical operations, i.e. summation and maximum. Although our framework is combinatorial,…

代数几何 · 数学 2010-08-02 Zur Izhakian

In this paper we develop a combinatorial abstraction of tropical linear programming. This generalizes the search for a feasible point of a system of min-plus-inequalities. It is based on the polyhedral properties of triangulations of the…

最优化与控制 · 数学 2017-12-05 Georg Loho

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…

代数几何 · 数学 2018-09-25 Daniele Alessandrini , Michele Nesci

We study side-lengths of triangles in path metric spaces. We prove that unless such a space X is bounded, or quasi-isometric to line or half-line, every triple of real numbers satisfying the strict triangle inequalities, is realized by the…

度量几何 · 数学 2014-11-11 Michael Kapovich

A projective rectangle is like a projective plane that has different lengths in two directions. We develop the basic theory of projective rectangles including incidence properties, projective subplanes, configuration counts, a partial…

组合数学 · 数学 2024-07-17 Rigoberto Florez , Thomas Zaslavsky

Every graph $\Gamma$ can be embedded in the plane with a minimal number of edge intersections, called its classical crossing number $\text{cross}\left(\Gamma\right)$. In this paper, we prove that if $\Gamma$ is a metric graph it can be…

代数几何 · 数学 2016-04-22 Adan Medrano Martin del Campo , Sylvain Carpentier