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In this paper, we give a generalization on the error correcting capability of twisted centralizer codes obtained from a fixed rank 1 matrix. In particular, we fix the combinatorial matrix which is obtained by getting the linear combination…

Information Theory · Computer Science 2024-11-07 John Ben S. Temones

Two correspondences have been provided that associate any linear code over a finite field with a binomial ideal. In this paper, algorithms for computing their Graver bases and universal Gr\"obner bases are given. To this end, a connection…

Commutative Algebra · Mathematics 2014-05-08 Natalia Dück , Karl-Heinz Zimmermann

We establish faithful tropicalisation for point configurations on algebraic tori. Building on ideas from enumerative geometry, we introduce tropical scaffolds and use them to construct a system of modular fan structures on the tropical…

Algebraic Geometry · Mathematics 2024-09-20 Navid Nabijou

In this paper, we provide a polynomial time algorithm to calculate the probability of a {\it ranked} gene tree topology for a given species tree, where a ranked tree topology is a tree topology with the internal vertices being ordered. The…

Populations and Evolution · Quantitative Biology 2012-03-02 Tanja Stadler , James H. Degnan

The problem of solving tropical linear systems, a natural problem of tropical mathematics, has already proven to be very interesting from the algorithmic point of view: it is known to be in $NP\cap coNP$ but no polynomial time algorithm is…

Computational Complexity · Computer Science 2013-09-23 Alex Davydow

The classical linear ordering problem seeks a single ranking representing a given preference matrix. While suitable for homogeneous populations, it fails when observed preferences arise from several latent groups with distinct ranking…

Optimization and Control · Mathematics 2026-05-15 Juan A. Aledo , Concepción Domínguez , Juan de Dios Jaime-Alcántara , Mercedes Landete

The deep holes of a linear code are the vectors that achieve the maximum error distance (covering radius) to the code. {Determining the covering radius and deep holes of linear codes is a fundamental problem in coding theory. In this paper,…

Information Theory · Computer Science 2025-06-02 Weijun Fang , Jingke Xu , Ruiqi Zhu

We study the difference between the number of facets of the order polytope and the chain polytope of a poset. Hibi and Li classified posets where the gap is exactly zero. We describe the bounds on this gap using the new notion of crossing…

Combinatorics · Mathematics 2024-05-29 Binaya Bhandari , Debra Cunningham , Grace Morrell , SuHo Oh , Paxton Smith

The order and chain polytopes are two 0/1-polytopes constructed from a finite poset. In this paper, we study the $f$-vectors of these polytopes. We investigate how the order and chain polytopes behave under disjoint unions and ordinal sums…

Combinatorics · Mathematics 2024-11-07 Ragnar Freij-Hollanti , Teemu Lundström

Based on the group structure of a unitary Lie algebra, a scheme is provided to systematically and exhaustively generate quantum error correction codes, including the additive and nonadditive codes. The syndromes in the process of…

Quantum Physics · Physics 2013-11-01 Ming-Chung Tsai , Po-Chung Chen , Kuan-Peng Chen , Zheng-Yao Su

The discovery of new quantum error-correcting codes that encode several logical qubits into relatively few physical qubits motivates the development of efficient and accurate methods of decoding these systems. Here, we adopt the…

Quantum Physics · Physics 2026-02-27 Kaavya Sahay , Dominic J. Williamson , Benjamin J. Brown

Linear codes have been an interesting topic in both theory and practice for many years. In this paper, for an odd prime power $q$, we construct some class of linear code over finite field $\mathbb{F}_q$ with defining set be the preimage of…

Information Theory · Computer Science 2016-01-27 Xiaoni Du , Yunqi Wan

In this article we introduce a new family of lattice polytopes with rational linear precision. For this purpose, we define a new class of discrete statistical models that we call multinomial staged tree models. We prove that these models…

Combinatorics · Mathematics 2022-08-10 Isobel Davies , Eliana Duarte , Irem Portakal , Miruna-Stefana Sorea

This is the first chapter in our "Toric Topology" book project. Further chapters are coming. Comments and suggestions are very welcome.

Combinatorics · Mathematics 2012-10-10 Victor Buchstaber , Taras Panov

Counting linear extensions is a fundamental problem in poset theory. It is known to be #P-complete, with polynomial-time formulas available in special cases. In this work, we develop new recursive formulas for counting linear extensions of…

Combinatorics · Mathematics 2026-01-22 Daniela Egas Santander , Matteo Santoro , Jason P. Smith

We study a class of quantum error-correcting codes through the geometry of complex abelian varieties. These codes, introduced by Gottesman--Kitaev--Preskill, are built from symplectically integral lattices and therefore naturally define…

Algebraic Geometry · Mathematics 2026-05-28 Maxence Mayrand , Baptiste Royer

We construct surface codes corresponding to genus greater than one in the context of quantum error correction. The architecture is inspired by the topology of invariant integral surfaces of certain non-integrable classical billiards.…

Quantum Physics · Physics 2023-08-07 Garima Rajpoot , Komal Kumari , Sudhir Ranjan Jain

We study semi-stable degenerations of toric varieties determined by certain partitions of their moment polytopes. Analyzing their defining equations we prove a property of uniqueness.

Algebraic Geometry · Mathematics 2007-12-21 Marina Marchisio , Vittorio Perduca

We compute toric degenerations arising from the tropicalization of the full flag varieties $\mathcal{F}\ell_4$ and $\mathcal{F}\ell_5$ embedded in a product of Grassmannians. For $\mathcal{F}\ell_4$ and $\mathcal{F}\ell_5$ we compare toric…

Algebraic Geometry · Mathematics 2018-02-06 Lara Bossinger , Sara Lamboglia , Kalina Mincheva , Fatemeh Mohammadi

We introduce a simple algorithm for reconstructing phylogenies from multiple gene trees in the presence of incomplete lineage sorting, that is, when the topology of the gene trees may differ from that of the species tree. We show that our…

Populations and Evolution · Quantitative Biology 2011-09-30 Elchanan Mossel , Sebastien Roch
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