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Related papers: Universality for tropical and logarithmic maps

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We generalized several results for the arithmetic dynamics of monomial maps, including Silverman's conjectures on height growth, dynamical Mordell-Lang conjecture, and dynamical Manin-Mumford conjecture. These results are originally known…

Dynamical Systems · Mathematics 2017-04-11 Jan-Li Lin

We augment the list of finite universal locally toroidal regular polytopes of type {3,3,4,3,3} due to P.McMullen and E.Schulte, adding as well as removing entries. This disproves a related long-standing conjecture. Our new universal…

Group Theory · Mathematics 2017-07-05 Dmitrii V. Pasechnik

We prove that every polytope described by algebraic coordinates is the face of a projectively unique polytope. This provides a universality property for projectively unique polytopes. Using a closely related result of Below, we construct a…

Metric Geometry · Mathematics 2013-06-14 Karim Alexander Adiprasito , Arnau Padrol

A topological space is totally paracompact if any base of this space contains a locally finite subcover. We focus on a problem of Curtis whether in the class of regular Lindel\"of spaces total paracompactness is equivalent to the Menger…

General Topology · Mathematics 2025-11-14 Davide Giacopello , Maddalena Bonanzinga , Piotr Szewczak

We contribute to the foundations of tropical geometry with a view towards formulating tropical moduli problems, and with the moduli space of curves as our main example. We propose a moduli functor for the moduli space of curves and show…

Algebraic Geometry · Mathematics 2020-04-29 Renzo Cavalieri , Melody Chan , Martin Ulirsch , Jonathan Wise

We consider arrangements of tropical hyperplanes where the apices of the hyperplanes are taken to infinity in certain directions. Such an arrangement defines a decomposition of Euclidean space where a cell is determined by its `type' data,…

Commutative Algebra · Mathematics 2025-02-21 Ayah Almousa , Anton Dochtermann , Ben Smith

We exhibit a faithful representation of the stylic monoid of every finite rank as a monoid of upper unitriangular matrices over the tropical semiring. Thus, we show that the stylic monoid of finite rank $n$ generates the pseudovariety…

Rings and Algebras · Mathematics 2022-10-04 Thomas Aird , Duarte Ribeiro

The main result of the paper proves that the monoid of all 2 x 2 tropical matrices satisfies a non-trivial semigroup identity, unlike the case of matrices over infinite fields. We exploit a strong connection between the monoid of all 2 x 2…

Group Theory · Mathematics 2009-02-10 Zur Izhakian , Stuart Margolis

We provide new constraints for algebro-geometric subgroups of mapping class groups, namely images of fundamental groups of curves under complex algebraic maps to the moduli space of smooth curves. Specifically, we prove that the restriction…

Algebraic Geometry · Mathematics 2026-05-29 Philippe Eyssidieux , Louis Funar

We introduce a moduli functor for varieties whose tropicalization realizes a given weighted fan and show that this functor is an algebraic space in general, and is represented by a scheme of finite type when the associated toric variety is…

Algebraic Geometry · Mathematics 2012-03-30 Eric Katz , Sam Payne

To any graph $G$ one can associate a toric variety $X(\mathcal{P}G)$, obtained as a blowup of projective space along coordinate subspaces corresponding to connected subgraphs of $G$. The polytope of this toric variety is the graph…

Algebraic Geometry · Mathematics 2017-06-06 Rodrigo Ferreira da Rosa , David Jensen , Dhruv Ranganathan

In this article we provide a stack-theoretic framework to study the universal tropical Jacobian over the moduli space of tropical curves. We develop two approaches to the process of tropicalization of the universal compactified Jacobian…

Algebraic Geometry · Mathematics 2025-09-17 Margarida Melo , Samouil Molcho , Martin Ulirsch , Filippo Viviani

We introduce the Hermitian-invariant group $\Gamma_f$ of a proper rational map $f$ between the unit ball in complex Euclidean space and a generalized ball in a space of typically higher dimension. We use properties of the groups to define…

Complex Variables · Mathematics 2017-03-29 John P. D'Angelo , Ming Xiao

Morphisms between schemes arising from multigraded rings are essential for understanding geometric relationships in algebraic geometry, yet a systematic theory for such maps has been lacking. In this paper, we develop a comprehensive…

Algebraic Geometry · Mathematics 2026-02-24 Felix Goebler

We study the base locus of the higher fundamental forms of a projective toric variety $X$ at a general point. More precisely we consider the closure $X$ of the image of a map $({\mathbb C}^*)^k\to {\mathbb P}^n$, sending $t$ to the vector…

Algebraic Geometry · Mathematics 2020-05-05 Antonio Laface , Luca Ugaglia

In this article, we first give some elementary proprieties of monoids and fans, then construct a toric scheme over an arbitrary ring, from a given fan. Using Valuative Criterion, we prove that this scheme is separated and give the…

Algebraic Geometry · Mathematics 2011-11-10 Ting Li

Given any polynomial system with fixed monomial term structure, we give explicit formulae for the generic number of roots with specified coordinate vanishing restrictions. For the case of affine space minus an arbitrary union of coordinate…

Algebraic Geometry · Mathematics 2016-09-06 J. Maurice Rojas

We introduce a natural generalization of twisted maps, called \emph{warped maps}. While twisted maps play an important role in the study of Deligne--Mumford stacks, warped maps are better suited for studying Artin stacks. Heuristically,…

Algebraic Geometry · Mathematics 2026-02-26 Matthew Satriano , Jeremy Usatine

We consider the metric space of all toric K\"ahler metrics on a compact toric manifold; when "looking at it from infinity" (following Gromov), we obtain the tangent cone at infinity, which is parametrized by equivalence classes of complete…

Differential Geometry · Mathematics 2023-09-11 Thomas Baier , Carlos Florentino , José M. Mourão , João P. Nunes

We prove that any compact semi-algebraic set is homeomorphic to the solution space of some art gallery problem. Previous works have established similar universality theorems, but holding only up to homotopy equivalence, rather than…

Computational Geometry · Computer Science 2023-05-30 Jack Stade , Jamie Tucker-Foltz