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We define monodromy maps for tropical Dolbeault cohomology of algebraic varieties over non-Archimedean fields. We propose a conjecture of Hodge isomorphisms via monodromy maps, and provide some evidence.

Algebraic Geometry · Mathematics 2017-04-28 Yifeng Liu

We study tropical Dolbeault cohomology for Berkovich analytic spaces, as defined by Chambert-Loir and Ducros. We provide a construction that lets us pull back classes in tropical cohomology to classes in tropical Dolbeault cohomology as…

Algebraic Geometry · Mathematics 2020-06-30 Philipp Jell

We give an introduction to Tropical Geometry and prove some results in Tropical Intersection Theory. The first part of this paper is an introduction to tropical geometry aimed at researchers in Algebraic Geometry from the point of view of…

Algebraic Geometry · Mathematics 2010-06-22 Eric Katz

It is known that, for a regular riemannian foliation on a compact manifold, the properties of its basic cohomology (non-vanishing of the top-dimensional group and Poincar\'e Duality) and the tautness of the foliation are closely related. If…

Differential Geometry · Mathematics 2008-01-29 J. I. Royo Prieto , M. Saralegi-Aranguren , R. Wolak

The first paper of this series introduced objects (elements of twisted relative cohomology) that are Poincar\'e dual to Feynman integrals. We show how to use the pairing between these spaces -- an algebraic invariant called the intersection…

High Energy Physics - Theory · Physics 2022-04-19 Simon Caron-Huot , Andrzej Pokraka

We give several characterizations of stable intersections of tropical cycles and establish their fundamental properties. We prove that the stable intersection of two tropical varieties is the tropicalization of the intersection of the…

Algebraic Geometry · Mathematics 2016-08-12 Anders Jensen , Josephine Yu

We develop a tropical analogue of the classical double description method allowing one to compute an internal representation (in terms of vertices) of a polyhedron defined externally (by inequalities). The heart of the tropical algorithm is…

Computational Geometry · Computer Science 2011-12-30 Xavier Allamigeon , Stephane Gaubert , Eric Goubault

The purpose of this paper is fourfold. The first is to develop the theory of tropical differential algebraic geometry from scratch; the second is to present the tropical fundamental theorem for differential algebraic geometry, and show how…

Algebraic Geometry · Mathematics 2021-11-16 Ethan Cotterill , Cristhian Garay , Johana Luviano

We give a complete description of Green's D relation for the multiplicative semigroup of all n-by-n tropical matrices. Our main tool is a new variant on the duality between the row and column space of a tropical matrix (studied by Cohen,…

Rings and Algebras · Mathematics 2014-02-26 Christopher Hollings , Mark Kambites

We determine the number of singularities - counted whit multiplicities - of generic distributions of dimension and codimension one on smooth complete intersections in compact toric orbifolds with isolated singularities. We also present some…

Algebraic Geometry · Mathematics 2025-12-30 Miguel Rodríguez Peña

We study integral plane curves meeting at a single unibranch point and show that such curves must satisfy two equivalent conditions. A numeric condition: the local invariants of the curves at the contact point must be arithmetically…

Algebraic Geometry · Mathematics 2026-03-17 Lucia Caporaso , Amos Turchet

In this paper, we give an explicit description of tropical cohomology of smooth algebraic varieties over trivially valued fields. We also construct ``monodromy weight'' spectral sequences for tropical cohomology of geometric strictly…

Algebraic Geometry · Mathematics 2025-07-23 Ryota Mikami

In the case of a compact orientable pseudomanifold, a well-known theorem of M. Goresky and R. MacPherson says that the cap product with a fundamental class factorizes through the intersection homology groups. In this work, we show that this…

Algebraic Topology · Mathematics 2017-05-22 David Chataur , Martintxo Saralegi-Aranguren , Daniel Tanré

We establish a partial extension of the Poincar\'e duality theorem of Jell-Rau-Shaw to tropical hypersurfaces arising from non-primitive triangulations. We introduce a notion of level of primitivity for triangulations of lattice polytopes…

Algebraic Geometry · Mathematics 2026-01-16 Samuel Dentan

We propose to study the tropical geometry specifically arising from convergent Hahn series in multiple indeterminates. One application is a new view on stable intersections of tropical hypersurfaces. Another one is perturbations of rank one…

Metric Geometry · Mathematics 2023-01-18 Michael Joswig , Ben Smith

Tropical differential equations are introduced and an algorithm is designed which tests solvability of a system of tropical linear differential equations within the complexity polynomial in the size of the system and in its coefficients.…

Symbolic Computation · Computer Science 2018-11-08 Dima Grigoriev

We introduce tropical spectrahedra, defined as the images by the nonarchimedean valuation of spectrahedra over the field of real Puiseux series. We provide an explicit polyhedral characterization of generic tropical spectrahedra, involving…

Algebraic Geometry · Mathematics 2020-10-14 Xavier Allamigeon , Stéphane Gaubert , Mateusz Skomra

Recently the duality map between electric-like asymptotic charges of $p$-form gauge theories is studied. The outcome is an existence and uniqueness theorem and the topological nature of the duality map. The goal of this work is to extend…

Mathematical Physics · Physics 2025-10-16 Federico Manzoni

Tropical refined invariants of toric surfaces constitute a fascinating interpolation between real and complex enumerative geometries via tropical geometry. They were originally introduced by Block and G\"ottsche, and further extended by…

Combinatorics · Mathematics 2022-03-21 Erwan Brugallé , Andrés Jaramillo Puentes

Complex braid groups are the natural generalizations of braid groups associated to arbitrary (finite) complex reflection groups. We investigate several methods for computing the homology of these groups. In particular, we get the Poincar\'e…

Algebraic Topology · Mathematics 2010-11-22 Filippo Callegaro , Ivan Marin