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相关论文: Graph limits: An alternative approach to s-graphon…

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Let $\mathbf G$ be a graphing, that is a Borel graph defined by $d$ measure preserving involutions. We prove that if $\mathbf G$ is {\em treeable} then it arises as the local limit of some sequence $(G_n)_{n\in\mathbb{N}}$ of graphs with…

组合数学 · 数学 2016-01-22 Lucas Hosseini , Patrice Ossona de Mendez

We extend the concept of the law of a finite graph to graphings, which are, in general, infinite graphs whose vertices are equipped with the structure of a probability space. By doing this, we obtain a vast array of new unimodular measures.…

组合数学 · 数学 2012-03-13 Igor Artemenko

We extend the $L^p$ theory of sparse graph limits, which was introduced in a companion paper, by analyzing different notions of convergence. Under suitable restrictions on node weights, we prove the equivalence of metric convergence,…

组合数学 · 数学 2018-02-06 Christian Borgs , Jennifer T. Chayes , Henry Cohn , Yufei Zhao

We develop a theory of limits for sequences of dense abstract simplicial complexes, where a sequence is considered convergent if its homomorphism densities converge. The limiting objects are represented by stacks of measurable [0,1]-valued…

组合数学 · 数学 2022-07-19 T. Mitchell Roddenberry , Santiago Segarra

We consider the problem of estimating graph limits, known as graphons, from observations of sequences of sparse finite graphs. In this paper we show a simple method that can shed light on a subset of sparse graphs. The method involves…

机器学习 · 统计学 2025-07-08 Sevvandi Kandanaarachchi , Cheng Soon Ong

Closeness is an important measure of network centrality. In this article we will calculate the closeness of graphs, created by using operations on graphs. We will prove a formula for the closeness of shadow graphs. We will calculate the…

离散数学 · 计算机科学 2024-12-05 Chavdar Dangalchev

A set of sequences is said to converge simultaneously if there exists an infinite subset $H$ of the index set $\omega$ such that all sequences converge when restricted to $H$. We discuss simultaneous convergence of sequences in the same or…

一般拓扑 · 数学 2025-12-18 Sirio Resteghini , Cesare Straffelini

Based on methods of structural convergence we provide a unifying view of local-global convergence, fitting to model theory and analysis. The general approach outlined here provides a possibility to extend the theory of local-global…

组合数学 · 数学 2018-10-18 Jaroslav Nesetril , Patrice Ossona de Mendez

We present a new notion of limits of weighted directed graphs of growing size based on convergence of their random quotients. These limits are specified in terms of random exchangeable measures on the unit square. We call our limits…

组合数学 · 数学 2026-03-24 Eitan Levin , Venkat Chandrasekaran

Bollob\'as and Riordan, in their paper "Metrics for sparse graphs," proposed a number of provocative conjectures extending central results of quasirandom graphs and graph limits to sparse graphs. We refute these conjectures by exhibiting a…

组合数学 · 数学 2021-11-08 Ashwin Sah , Mehtaab Sawhney , Jonathan Tidor , Yufei Zhao

We reduce the isomorphism problem for undirected graphs without loops to the isomorphism problems for a class of finite dimensional $2$-step nilpotent Lie algebras over a field and for a class of finite $p$-groups. We show that the…

群论 · 数学 2020-08-03 Ruvim Lipyanski , Natalia Vanetik

We analytically study proximity and distance properties of various kernels and similarity measures on graphs. This helps to understand the mathematical nature of such measures and can potentially be useful for recommending the adoption of…

组合数学 · 数学 2018-08-17 Konstantin Avrachenkov , Pavel Chebotarev , Dmytro Rubanov

We survey some basic results on the Gromov-Prohorov distance between metric measure spaces. (We do not claim any new results.) We give several different definitions and show the equivalence of them. We also show that convergence in the…

概率论 · 数学 2020-06-03 Svante Janson

Motivated in part by various sequences of graphs growing under random rules (like internet models), convergent sequences of dense graphs and their limits were introduced by Borgs, Chayes, Lov\'asz, S\'os and Vesztergombi and by Lov\'asz and…

组合数学 · 数学 2009-05-26 C. Borgs , J. Chayes , L. Lovász , V. T. Sós , K. Vesztergombi

An important theme in recent work in asymptotic geometric analysis is that many classical implications between different types of geometric or functional inequalities can be reversed in the presence of convexity assumptions. In this note,…

概率论 · 数学 2015-07-22 Elizabeth S. Meckes , Mark W. Meckes

In the paper we introduce and study a classification of finite (simple, undirected, loopless) graphs with respect to a switch-equivalence (`local-complement' equivalence of \cite{pascvebl}, an analogue of the complement-equivalence of…

组合数学 · 数学 2015-09-01 Elżbieta Błaszko , Małgorzata Prażmowska , Krzysztof Prażmowski

The colored neighborhood metric for sparse graphs was introduced by Bollob\'as and Riordan. The corresponding convergence notion refines a convergence notion introduced by Benjamini and Schramm. We prove that even in this refined sense, the…

组合数学 · 数学 2013-08-23 Hamed Hatami , László Lovász , Balázs Szegedy

Recent work has introduced sparse exchangeable graphs and the associated graphex framework, as a generalization of dense exchangeable graphs and the associated graphon framework. The development of this subject involves the interplay…

概率论 · 数学 2020-02-12 Christian Borgs , Jennifer T. Chayes , Henry Cohn , Victor Veitch

We study the complexity of the isomorphism relation for various classes of closed subgroups of the group of permutations of the natural numbers. We use the setting of Borel reducibility between equivalence relations on Polish spaces. For…

逻辑 · 数学 2021-08-24 Alexander S. Kechris , Andree Nies , Katrin Tent

The problem of measuring similarity of graphs and their nodes is important in a range of practical problems. There is a number of proposed measures, some of them being based on iterative calculation of similarity between two graphs and the…

人工智能 · 计算机科学 2010-09-28 Mladen Nikolic