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Suppose that (K, $\nu$) is a valued field, f (z) $\in$ K[z] is a unitary and irreducible polynomial and (L, $\omega$) is an extension of valued fields, where L = K[z]/(f (z)). Further suppose that A is a local domain with quotient field K…

Algebraic Geometry · Mathematics 2021-03-09 Steven Dale Cutkosky , Steven Cutkosky , Hussein Mourtada , Bernard Teissier

Let p be an odd prime number and K be a p-adic field. In this paper, we develop an analogue of Fontaine's theory of (phi,Gamma)-modules replacing the p-cyclotomic extension by the extension K_infty obtained by adding to K a compatible…

Number Theory · Mathematics 2019-12-19 Xavier Caruso

This survey paper was primarily written as as the support for a course pesented at the JNCF2025: it aims to present some material that illustrates the kind of estimates one can obtain in effective algebraic geometry, for affine polynomial…

Algebraic Geometry · Mathematics 2026-01-19 Teresa Krick

The goal of this paper is to make a connection between tropical geometry, representations of quantum affine algebras, and scattering amplitudes in physics. The connection allows us to study important and difficult questions in these areas:…

Quantum Algebra · Mathematics 2024-04-16 Nick Early , Jian-Rong Li

Hilbert schemes of zero-dimensional ideals in a polynomial ring can be covered with suitable affine open subschemes whose construction is achieved using border bases. Moreover, border bases have proved to be an excellent tool for describing…

Commutative Algebra · Mathematics 2008-06-26 Lorenzo Robbiano

Motivated by better understanding the bideterminant (=product of minors) basis on the polynomial ring in $n \times m$ variables, we develop theory \& algorithms for Gr\"obner bases in not only algebras with straightening law (ASLs or Hodge…

Commutative Algebra · Mathematics 2025-10-14 Joshua A. Grochow , Abhiram Natarajan

We give algorithms for the computation of the algebraic de Rham cohomology of open and closed algebraic sets inside projective space or other smooth complex toric varieties. The methods, which are based on Gr\"obner basis computations in…

Algebraic Geometry · Mathematics 2009-09-25 Uli Walther

The purpose of this article is to develop foundational techniques from logarithmic geometry in order to define a functorial tropicalization map for fine and saturated logarithmic schemes in the case of constant coefficients. Our approach…

Algebraic Geometry · Mathematics 2017-06-14 Martin Ulirsch

A valuation-theoretic framework is developed for studying tropical degenerations of multilinear network games. Equilibrium conditions are modeled by an ideal over the Puiseux field, and valuation classes and cluster multiplicities are used…

Algebraic Geometry · Mathematics 2026-05-06 Hangkun Hu , Jingyi Wang , Minggang Wang

Let $\K$ be a field and $(f_1, \ldots, f_n)\subset \K[X_1, \ldots, X_n]$ be a sequence of quasi-homogeneous polynomials of respective weighted degrees $(d_1, \ldots, d_n)$ w.r.t a system of weights $(w_{1},\dots,w_{n})$. Such systems are…

Symbolic Computation · Computer Science 2013-05-07 Jean-Charles Faugère , Mohab Safey El Din , Thibaut Verron

We estimate the fraction of isogeny classes of abelian varieties over a finite field which have a given characteristic polynomial P(T) modulo l. As an application we find the proportion of isogeny classes of abelian varieties with a…

Number Theory · Mathematics 2007-05-23 Joshua Holden

We study the notion of degeneration for affine schemes associated to systems of algebraic differential equations with coefficients in the fraction field of a multivariate formal power series ring. In order to do this, we use an integral…

Algebraic Geometry · Mathematics 2023-09-20 Lara Bossinger , Sebastian Falkensteiner , Cristhian Garay-López , Marc Paul Noordman

We introduce the notion of affine strict polynomial functor. We show how this concept helps to understand homological behavior of the operation of Frobenius twist in the category of strict polynomial functors over a field of positive…

K-Theory and Homology · Mathematics 2014-11-14 Marcin Chałupnik

This paper is the third installment in a series of papers devoted to the computation of enumerative invariants of abelian surfaces through the tropical approach. We develop a pearl diagram algorithm similar to the floor diagram algorithm…

Algebraic Geometry · Mathematics 2024-03-27 Thomas Blomme

Following our first article, we continue to investigate ultrametic modules over a ring of twisted polynomials of the form $[K;\vfi]$, where $\vfi$ is a ring endomorphism of $K$. The main motivation comes from the the theory of valued…

Logic · Mathematics 2019-04-25 Gönenç Onay

In this paper we present two intrinsic algebraic definitions of tropical variety motivated by the classical Zariski correspondence, one utilizing the algebraic structure of the coordinate semiring of an affine supertropical algebraic set,…

Algebraic Geometry · Mathematics 2014-08-12 Zur Izhakian , Louis Rowen

Let $f$ be an irreducible polynomial of prime degree $p\geq 5$ over $\QQ$, with precisely $k$ pairs of complex roots. Using a result of Jens H\"{o}chsmann (1999), we show that if $p\geq 4k+1$ then $\Gal(f/\QQ)$ is isomorphic to $A_{p}$ or…

Number Theory · Mathematics 2007-09-19 Oz Ben-Shimol

Finding a common factor of two multivariate polynomials with approximate coefficients is a problem in symbolic-numeric computing. Taking a tropical view on this problem leads to efficient preprocessing techniques, applying polyhedral…

Algebraic Geometry · Mathematics 2008-09-02 Danko Adrovic , Jan Verschelde

In this text, we study factorizations of polynomials over the tropical hyperfield and the sign hyperfield, which we call `tropical polynomials' and `sign polynomials', respectively. We classify all irreducible polynomials in either case. We…

Number Theory · Mathematics 2020-05-27 Alexander Agudelo , Oliver Lorscheid

By modifying the method in [KNO], certain affine geometric crystals are realized in affinization of the fundamental representation $W(\varpi_1)_l$ and the tropical R maps for the affine geometric crystals are described explicitly. We also…

Quantum Algebra · Mathematics 2008-08-19 Masaki Kashiwara , Toshiki Nakashima , Masato Okado