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By tropical Abel-Jacobi theorem, the Jacobian of a tropical curve is isomorphic to the Picard group. A tropical curve in $\mathbb{R}^2$ corresponds to an immersion from a tropical curve to $\mathbb{R}^2$. In this paper, we show that any…

Combinatorics · Mathematics 2011-04-05 Shuhei Yoshitomi

We introduce tropical corals, balanced trees in a half-space, and show that they correspond to holomorphic polygons capturing the product rule in Lagrangian Floer theory for the elliptic curve. We then prove a correspondence theorem…

Algebraic Geometry · Mathematics 2022-03-09 Hülya Argüz

We study representations of tropical linear spaces as intersections of tropical hyperplanes of circuits. For several classes of matroids, we describe minimal tropical bases. We also show that every realizable tropical linear space has a…

Combinatorics · Mathematics 2007-05-23 Josephine Yu , Debbie S. Yuster

We study a notion of tropical linear series on metric graphs that combines two essential properties of tropicalizations of linear series on algebraic curves: the Baker-Norine rank and the independence rank. Our main results relate the local…

Algebraic Geometry · Mathematics 2025-09-05 Chih-Wei Chang , Matthew Dupraz , Hernan Iriarte , David Jensen , Dagan Karp , Sam Payne , Jidong Wang

We introduce regular morphisms of topological quivers and show that they give rise to a subcategory of the category of topological quivers and quiver morphisms. Our regularity conditions render the topological quiver C*-algebra construction…

Operator Algebras · Mathematics 2025-07-15 Mariusz Tobolski

Tropical caustic of a convex domain on the plane is a canonically associated tropical analytic curve inside the domain. In this note we give a graphical proof for the classification of its intermediate vertices, implying in particular that…

Algebraic Geometry · Mathematics 2025-10-03 Mikhail Shkolnikov

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

We construct algebraic curves in abelian surfaces starting from tropical curves in real tori. We give a necessary and sufficient condition for a tropical curve in a real torus to be realizable by an algebraic curve in an abelian surface.…

Algebraic Geometry · Mathematics 2020-08-03 Takeo Nishinou

Let $W$ be a subset of the set of real points of a real algebraic variety $X$. We investigate which functions $f: W \to \mathbb R$ are the restrictions of rational functions on $X$. We introduce two new notions: ${\it curve-rational \,…

Algebraic Geometry · Mathematics 2017-02-22 János Kollár , Wojciech Kucharz , Krzysztof Kurdyka

In this paper we focus on the tropical convex hull of convex sets and polyhedral complexes. We give a vertex description of the tropical convex hull of a line segment and a ray. %in \RR^{n+1}/\RR\mathbf{1}. Next we show that tropical convex…

Combinatorics · Mathematics 2020-09-08 Cvetelina Hill , Sara Lamboglia , Faye Pasley Simon

We introduce algebraic structures on the polyvector fields of an algebraic torus that serve to compute multiplicities in tropical and log Gromov-Witten theory while also connecting to the mirror symmetry dual deformation theory of complex…

Algebraic Geometry · Mathematics 2022-01-27 Travis Mandel , Helge Ruddat

Tropical oriented matroids were defined by Ardila and Develin in 2007. They are a tropical analogue of classical oriented matroids in the sense that they encode the properties of the types of points in an arrangement of tropical hyperplanes…

Combinatorics · Mathematics 2012-12-11 Silke Horn

We define a new algebraic invariant of a graph $G$ called the Ceresa-Zharkov class and show that it is trivial if and only if $G$ is of hyperelliptic type, equivalently, $G$ does not have as a minor the complete graph on 4 vertices or the…

Algebraic Geometry · Mathematics 2022-04-14 Daniel Corey , Wanlin Li

We provide, explicitly, equivalences and dual equivalences between categories of abstract quadratic forms theories and subcategories of multifields and multirings, that will bring new perspectives and methods to the abstract theories of…

Commutative Algebra · Mathematics 2020-08-31 Hugo Rafael de Oliveira Ribeiro , Kaique Matias de Andrade Roberto , Hugo Luiz Mariano

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

We address the question of finding algebraic properties that are respectively equivalent, for a morphism between algebraic varieties over an algebraically closed field of characteristic zero, to be an homeomorphism for the Zariski topology…

Algebraic Geometry · Mathematics 2022-11-16 François Bernard , Goulwen Fichou , Jean-Philippe Monnier , Ronan Quarez

Curved algebras are algebras endowed with a predifferential, which is an endomorphism of degree -1 whose square is not necessarily 0. This makes the usual definition of quasi-isomorphism meaningless and therefore the homotopical study of…

Algebraic Topology · Mathematics 2025-06-24 Joan Bellier-Millès , Gabriel C. Drummond-Cole

We associate to an analytic subvariety of a torus a tropical variety. In the first part, we generalize the results from tropical algebraic geometry to this non-archimedean analytic situation. The periodic case is applied to a totally…

Number Theory · Mathematics 2009-11-11 Walter Gubler

We describe the supercharacter theories of the semidirect product of H and K, $H\rtimes K$ in terms of the supercharacter theories of the direct product of H and K in the case when both H and K are Abelian groups. To do this we introduce…

Representation Theory · Mathematics 2014-05-09 Alexander Lang

Following our previous work, we suggest here a large class of algebras of scalars in which simultaneous and correlated computations can be performed owing to the existence of surjective algebra homomorphisms. This may replace the currently…

General Mathematics · Mathematics 2007-05-23 Elemer E Rosinger