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Each graph and choice of a commutative ring gives rise to an associated graphical group. In this article, we introduce and investigate graph polynomials that enumerate conjugacy classes of graphical groups over finite fields according to…

群论 · 数学 2022-03-14 Tobias Rossmann

We study the ergodic theory of a one-parameter family of interval maps T_alpha arising from generalized continued fraction algorithms. First of all, we prove the dependence of the metric entropy of T_alpha to be Hoelder-continuous in the…

动力系统 · 数学 2011-11-01 Giulio Tiozzo

K\"orner introduced the notion of graph entropy in 1973 as the minimal code rate of a natural coding problem where not all pairs of letters can be distinguished in the alphabet. Later it turned out that it can be expressed as the solution…

组合数学 · 数学 2023-08-29 Viktor Harangi , Xueyan Niu , Bo Bai

We present new convergence estimates of generalized empirical interpolation methods in terms of the entropy numbers of the parametrized function class. Our analysis is transparent and leads to sharper convergence rates than the classical…

数值分析 · 数学 2026-02-24 Yuwen Li

We study the convexity of the entropy functional along particular interpolating curves defined on the space of finitely supported probability measures on a graph.

概率论 · 数学 2014-06-20 Erwan Hillion

We consider the number of crossings in a random embedding of a graph, $G$, with vertices in convex position. We give explicit formulas for the mean and variance of the number of crossings as a function of various subgraph counts of $G$.…

概率论 · 数学 2024-10-14 Santiago Arenas-Velilla , Octavio Arizmendi , J. E. Paguyo

Consider a uniform expanders family G_n with a uniform bound on the degrees. It is shown that for any p and c>0, a random subgraph of G_n obtained by retaining each edge, randomly and independently, with probability p, will have at most one…

概率论 · 数学 2007-05-23 Noga Alon , Itai Benjamini , Alan Stacey

In the online prediction framework, we use generalized entropy of to study the loss rate of predictors when outcomes are drawn according to stationary ergodic distributions over the binary alphabet. We show that the notion of generalized…

信息论 · 计算机科学 2016-03-08 Mrinalkanti Ghosh , Satyadev Nandakumar

End-spaces of infinite graphs naturally generalise the Freudenthal boundary and sit at the interface between graph theory, geometric group theory and topology. Our main result is that every end-space can topologically be represented by a…

组合数学 · 数学 2024-09-02 Jan Kurkofka , Max Pitz

We view hyper-graphs as incidence graphs, i.e. bipartite graphs with a set of nodes representing vertices and a set of nodes representing hyper-edges, with two nodes being adjacent if the corresponding vertex belongs to the corresponding…

计算机科学中的逻辑 · 计算机科学 2015-05-08 Nans Lefebvre

We survey and introduce concepts and tools located at the intersection of information theory and network biology. We show that Shannon's information entropy, compressibility and algorithmic complexity quantify different local and global…

分子网络 · 定量生物学 2015-12-14 Hector Zenil , Narsis A. Kiani , Jesper Tegnér

The entropy of a graph is a functional depending both on the graph itself and on a probability distribution on its vertex set. This graph functional originated from the problem of source coding in information theory and was introduced by J.…

组合数学 · 数学 2013-11-25 Seyed Saeed Changiz Rezaei

We propose a novel model for generating graphs similar to a given example graph. Unlike standard approaches that compute features of graphs in Euclidean space, our approach obtains features on a surface of a hypersphere. We then utilize a…

社会与信息网络 · 计算机科学 2011-05-20 Dalton Lunga , Sergey Kirshner

We introduce a mapping between graphs and pure quantum bipartite states and show that the associated entanglement entropy conveys non-trivial information about the structure of the graph. Our primary goal is to investigate the family of…

量子物理 · 物理学 2012-02-24 Silvano Garnerone , Paolo Giorda , Paolo Zanardi

We investigate the maximum-entropy model $\mathcal{B}_{n,m,p}$ for random $n$-vertex, $m$-edge multi-hypergraphs with expected edge size $pn$. We show that the expected size of the minimization of $\mathcal{B}_{n,m,p}$, i.e., the number of…

离散数学 · 计算机科学 2020-11-03 Thomas Bläsius , Tobias Friedrich , Martin Schirneck

We derive a simple formula characterizing the distribution of the size of the connected component of a fixed vertex in the Erd\H{o}s-R\'enyi random graph which allows us to give elementary proofs of some results of Federico, van der…

概率论 · 数学 2018-04-27 Balazs Rath

We study the expected adjacency matrix of a uniformly random multigraph with fixed degree sequence $\mathbf{d} \in \mathbb{Z}_+^n$. This matrix arises in a variety of analyses of networked data sets, including modularity-maximization and…

社会与信息网络 · 计算机科学 2020-02-10 Philip S. Chodrow

Graph representation learning has achieved great success in many areas, including e-commerce, chemistry, biology, etc. However, the fundamental problem of choosing the appropriate dimension of node embedding for a given graph still remains…

机器学习 · 计算机科学 2021-09-01 Gongxu Luo , Jianxin Li , Jianlin Su , Hao Peng , Carl Yang , Lichao Sun , Philip S. Yu , Lifang He

We investigate the equidistribution of the eigenfunctions on quantum graphs in the high-energy limit. Our main result is an estimate of the deviations from equidistribution for large well-connected graphs. We use an exact field-theoretic…

混沌动力学 · 物理学 2009-11-13 S. Gnutzmann , J. P. Keating , F. Piotet

Chudnovsky, Kim, Oum, and Seymour recently established that any prime graph contains one of a short list of induced prime subgraphs [1]. In the present paper we reprove their theorem using many of the same ideas, but with the key…

逻辑 · 数学 2015-11-10 M. Malliaris , C. Terry