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The dodecacode is a nonlinear additive quaternary code of length $12$. By puncturing it at any of the twelve coordinates, we obtain a uniformly packed code of distance $5$. In particular, this latter code is completely regular but not…

组合数学 · 数学 2019-10-15 Minjia Shi , Denis Krotov , Patrick Solé

Recently there has been increased interest in fitting generative graph models to real-world networks. In particular, Bl\"asius et al. have proposed a framework for systematic evaluation of the expressivity of random graph models. We extend…

社会与信息网络 · 计算机科学 2024-05-14 Benjamin Dayan , Marc Kaufmann , Ulysse Schaller

We propose an effective algorithm that enumerates (and actually finds) all 3-edge colorings and Hamiltonian cycles in a cubic graph. The idea is to make a preliminary run that separates the vertices into two types: ``rigid'' (such that the…

组合数学 · 数学 2009-09-29 V. Ejov , N. Pugacheva , S. Rossomakhine , P. Zograf

Locally testable codes (LTC) are error-correcting codes that have a local tester which can distinguish valid codewords from words that are "far" from all codewords by probing a given word only at a very few (sublinear, typically constant)…

计算复杂性 · 计算机科学 2020-05-05 Yotam Dikstein , Irit Dinur , Prahladh Harsha , Noga Ron-Zewi

We propose a new method to construct maximin distance designs with arbitrary number of dimensions and points. The proposed designs hold interleaved-layer structures and are by far the best maximin distance designs in four or more…

统计方法学 · 统计学 2018-07-09 Xu He

We consider decomposing a 3-connected planar graph $G$ using laminar separators of size three. We show how to find a maximal set of laminar 3-separators in such a graph in linear time. We also discuss how to find maximal laminar set of…

数据结构与算法 · 计算机科学 2018-10-22 David Eppstein , Bruce Reed

A topological interlocking assembly is an arrangement of blocks, where all blocks are kinematically constrained by their neighboring blocks and a fixed frame. This concept has been known for a long time, attracting recent interest due to…

材料科学 · 物理学 2025-12-04 Lukas Schnelle , Meike Weiß , Reymond Akpanya , Kai-Uwe Schröder , Alice C. Niemeyer

This work studies path planning in two-dimensional space, in the presence of polygonal obstacles. We specifically address the problem of building a roadmap graph, that is, an abstract representation of all the paths that can potentially be…

计算几何 · 计算机科学 2016-06-08 Stéphane Lens , Bernard Boigelot

We provide a method for the generation of effective continuum Hamiltonians that goes beyond the well known k.p method in being equally effective in both high, and low (or no) symmetry situations. Our approach is based on a surprising exact…

介观与纳米尺度物理 · 物理学 2019-07-10 N. Ray , F. Rost , D. Weckbecker , M. Vogl , S. Sharma , R. Gupta , O. Pankratov , S. Shallcross

An interpolation-based decoding scheme for interleaved subspace codes is presented. The scheme can be used as a (not necessarily polynomial-time) list decoder as well as a probabilistic unique decoder. Both interpretations allow to decode…

信息论 · 计算机科学 2014-08-07 Hannes Bartz , Antonia Wachter-Zeh

We give here an efficient method to reconstruct the block interleaver and recover the convolutional code when several noisy interleaved codewords are given. We reconstruct the block interleaver without assumption on its structure. By…

信息论 · 计算机科学 2015-01-16 Audrey Tixier

In this paper, we propose a class of linear codes and obtain their weight distribution. Some of these codes are almost optimal. Moreover, several classes of constant composition codes(CCCs) are constructed as subcodes of linear codes.

信息论 · 计算机科学 2017-06-28 Long Yu , Xiusheng Liu

We investigate the structure of graphs of twin-width at most $1$, and obtain the following results: - Graphs of twin-width at most $1$ are permutation graphs. In particular they have an intersection model and a linear structure. - There is…

离散数学 · 计算机科学 2025-01-03 Jungho Ahn , Hugo Jacob , Noleen Köhler , Christophe Paul , Amadeus Reinald , Sebastian Wiederrecht

We redevelop persistent homology (topological persistence) from a categorical point of view. The main objects of study are diagrams, indexed by the poset of real numbers, in some target category. The set of such diagrams has an interleaving…

代数拓扑 · 数学 2014-05-13 Peter Bubenik , Jonathan A. Scott

Graphs and recently hypergraphs have been known as an important tool for considering different properties of quantum many-body systems. In this paper, we study a mapping between an important class of quantum systems namely quantum…

量子物理 · 物理学 2017-10-27 Mohammad Hossein Zarei

Predicting metro passenger flow precisely is of great importance for dynamic traffic planning. Deep learning algorithms have been widely applied due to their robust performance in modelling non-linear systems. However, traditional deep…

机器学习 · 计算机科学 2022-11-10 Yuyang Miao , Yao Xu , Danilo Mandic

Associated to any hypergraph is a toric ideal encoding the algebraic relations among its edges. We study these ideals and the combinatorics of their minimal generators, and derive general degree bounds for both uniform and non-uniform…

交换代数 · 数学 2012-12-24 Elizabeth Gross , Sonja Petrović

This study investigates the properties of the 3-token graph derived from path graphs, with a particular focus on its structural characteristics and key attributes. We analyze how the 3-token graph is constructed from path graphs and explore…

组合数学 · 数学 2025-11-17 Felicia Servina Djuang , Arizka Yuliana , Widi Bagaskara , Yeni Susanti

Entailment Graphs (EGs) have been constructed based on extracted corpora as a strong and explainable form to indicate context-independent entailment relations in natural languages. However, EGs built by previous methods often suffer from…

计算与语言 · 计算机科学 2023-06-08 Zhibin Chen , Yansong Feng , Dongyan Zhao

A hypergraph is called an r by r grid if it is isomorphic to a pattern of r horizontal and r vertical lines. Three sets form a triangle if they pairwise intersect in three distinct singletons. A hypergraph is linear if every pair of edges…

组合数学 · 数学 2011-03-10 Zoltán Füredi , Miklós Ruszinkó