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We introduce in this article a new method to estimate the minimum distance of codes from algebraic surfaces. This lower bound is generic, i.e. can be applied to any surface, and turns out to be ``liftable'' under finite morphisms, paving…

Algebraic Geometry · Mathematics 2020-06-09 Alain Couvreur , Philippe Lebacque , Marc Perret

In this paper we show that a surface in P^3 parametrized over a 2-dimensional toric variety T can be represented by a matrix of linear syzygies if the base points are finite in number and form locally a complete intersection. This…

Algebraic Geometry · Mathematics 2008-07-31 Nicolás Botbol , Alicia Dickenstein , Marc Dohm

Let X be a subset of a projective space, over a finite field K, which is parameterized by the monomials arising from the edges of a clutter. Let I(X) be the vanishing ideal of X. It is shown that I(X) is a complete intersection if and only…

Commutative Algebra · Mathematics 2011-11-22 Eliseo Sarmiento , Maria Vaz Pinto , Rafael H. Villarreal

Three dimensional (3D) toric codes are a class of stabilizer codes with local checks and come under the umbrella of topological codes. While decoding algorithms have been proposed for the 3D toric code on a cubic lattice, there have been…

Quantum Physics · Physics 2019-11-15 Arun B. Aloshious , Pradeep Kiran Sarvepalli

A new class of spherical codes is constructed by selecting a finite subset of flat tori from a foliation of the unit sphere S^{2L-1} of R^{2L} and designing a structured codebook on each torus layer. The resulting spherical code can be the…

Information Theory · Computer Science 2016-11-17 Cristiano Torezzan , Sueli I. R. Costa , Vinay A. Vaishampayan

This note presents some new information on how the minimum distance of the generalized toric code corresponding to a fixed set of integer lattice points S in R^2 varies with the base field. The main results show that in some cases, over…

Information Theory · Computer Science 2011-09-14 John B. Little

We construct linear codes over the finite field Fq from arbitrary simplicial complexes, establishing a connection between topological properties and fundamental coding parameters. First, we study the behaviour of the weights of codewords…

Information Theory · Computer Science 2026-03-05 Antonio Jesús Lorite López , Daniel Camazón Portela , Juan Antonio López Ramos

We define a linear code $C_\eta(\delta_T,\delta_X)$ by evaluating polynomials of bidegree $(\delta_T,\delta_X)$ in the Cox ring on $\mathbb{F}_q$-rational points of the Hirzebruch surface of parameter $\eta$ on the finite field…

Information Theory · Computer Science 2018-12-07 Jade Nardi

The physical realization of $\mathbb Z_2$ topological order as encountered in the paradigmatic toric code has proven to be an elusive goal. We predict that this phase of matter can be realized in a two-dimensional array of Rydberg atoms…

Strongly Correlated Electrons · Physics 2021-08-31 Ruben Verresen , Mikhail D. Lukin , Ashvin Vishwanath

The toric Hilbert scheme of a lattice L in Z^n is the multigraded Hilbert scheme parameterizing all ideals in k[x_1,...,x_n] with Hilbert function value one for every degree in the grading monoid N^n/L. In this paper we show that if L is…

Algebraic Geometry · Mathematics 2007-05-23 Diane Maclagan , Rekha R. Thomas

A toric code, introduced by Hansen to extend the Reed-Solomon code as a $k$-dimensional subspace of $\mathbb{F}_q^n$, is determined by a toric variety or its associated integral convex polytope $P \subseteq [0,q-2]^n$, where $k=|P \cap…

Algebraic Geometry · Mathematics 2024-07-17 Mallory Dolorfino , Cordelia Horch , Kelly Jabbusch , Ryan Martinez

We define weighted projective Reed-Muller codes over a subset of weighted projective space over a finite field. We focus on the case when the set X is a projective weighted torus. We show that the vanishing ideal of X is a lattice ideal and…

Commutative Algebra · Mathematics 2013-07-25 Eduardo Dias , Jorge Neves

We introduce a family of toric algebras defined by maximal chains of a finite distributive lattice. Applying results on stable set polytopes we conclude that every such algebra is normal and Cohen-Macaulay, and give an interpretation of its…

Commutative Algebra · Mathematics 2024-03-13 Oleksandra Gasanova , Lisa Nicklasson

Given a hypergraph $\mathcal{H}$, we introduce a new class of evaluation toric codes called edge codes derived from $\mathcal{H}$. We analyze these codes, focusing on determining their basic parameters. We provide estimations for the…

Commutative Algebra · Mathematics 2024-04-04 Delio Jaramillo-Velez

We produce an explicit parameterization of well-rounded sublattices of the hexagonal lattice in the plane, splitting them into similarity classes. We use this parameterization to study the number, the greatest minimal norm, and the highest…

Number Theory · Mathematics 2010-10-28 Lenny Fukshansky , Daniel Moore , R. Andrew Ohana , Whitney Zeldow

Let K be a finite field and let X* be an affine algebraic toric set parameterized by monomials. We give an algebraic method, using Groebner bases, to compute the length and the dimension of C_X*(d), the parameterized affine code of degree d…

Commutative Algebra · Mathematics 2024-02-07 Hiram H. Lopez , Eliseo Sarmiento , Maria Vaz Pinto , Rafael H. Villarreal

Let K be a finite field and let X be a subset of a projective space, over the field K, which is parameterized by monomials arising from the edges of a clutter. We show some estimates for the degree-complexity, with respect to the revlex…

Commutative Algebra · Mathematics 2012-08-03 Eliseo Sarmiento , Maria Vaz Pinto , Rafael H. Villarreal

A Lattice is a partially ordered set where both least upper bound and greatest lower bound of any pair of elements are unique and exist within the set. K\"{o}tter and Kschischang proved that codes in the linear lattice can be used for error…

Discrete Mathematics · Computer Science 2021-09-30 Pranab Basu

Toric codes are obtained by evaluating rational functions of a nonsingular toric variety at the algebraic torus. One can extend toric codes to the so called generalized toric codes. This extension consists on evaluating elements of an…

Information Theory · Computer Science 2010-02-25 Diego Ruano

A description of complete normal varieties with lower dimensional torus action has been given by Altmann, Hausen, and Suess, generalizing the theory of toric varieties. Considering the case where the acting torus T has codimension one, we…

Algebraic Geometry · Mathematics 2010-05-24 Nathan Ilten , Hendrik Süß