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We confirm the eventual evasiveness of several classes of monotone graph properties under widely accepted number theoretic hypotheses. In particular we show that Chowla's conjecture on Dirichlet primes implies that (a) for any graph $H$,…

计算复杂性 · 计算机科学 2010-02-03 Laszlo Babai , Anandam Banerjee , Raghav Kulkarni , Vipul Naik

We develop a homotopy theory of directed graphs based on cubical homotopy groups, also referred to as A-groups or reduced GLMY homotopy groups. Localizing the category of directed graphs at morphisms that induce isomorphisms on these groups…

代数拓扑 · 数学 2026-05-07 Briony Eldridge , Sergei O. Ivanov , Xiaomeng Xu , Shing-Tung Yau , Mengmeng Zhang

In causal inference on directed acyclic graphs, the orientation of edges is in general only recovered up to Markov equivalence classes. We study Markov equivalence classes of uniformly random directed acyclic graphs. Using a tower…

概率论 · 数学 2024-10-01 Dominik Schmid , Allan Sly

We study a general framework of distributional computational graphs: computational graphs whose inputs are probability distributions rather than point values. We analyze the discretization error that arises when these graphs are evaluated…

机器学习 · 统计学 2026-02-13 Olof Hallqvist Elias , Michael Selby , Phillip Stanley-Marbell

Suppose that $G_j$ is a sequence of finite connected planar graphs, and in each $G_j$ a special vertex, called the root, is chosen randomly-uniformly. We introduce the notion of a distributional limit $G$ of such graphs. Assume that the…

概率论 · 数学 2008-11-26 Itai Benjamini , Oded Schramm

We consider an indexed class of real symmetric random matrices which generalize the symmetric Hankel and Reverse Circulant matrices. We show that the limiting spectral distributions of these matrices exist almost surely and the limit is…

概率论 · 数学 2014-08-06 Anirban Basak , Arup Bose , Soumendu Sundar Mukherjee

We consider the random reversible Markov kernel K obtained by assigning i.i.d. nonnegative weights to the edges of the complete graph over n vertices and normalizing by the corresponding row sum. The weights are assumed to be in the domain…

概率论 · 数学 2012-11-19 Charles Bordenave , Pietro Caputo , Djalil Chafaï

The Peterson-Thom conjecture asserts that any diffuse, amenable subalgebra of a free group factor is contained in a unique maximal amenable subalgebra. This conjecture is motivated by related results in Popa's deformation/rigidity theory…

算子代数 · 数学 2022-03-15 Ben Hayes

One of the main questions that arise when studying random and quasi-random structures is which properties P are such that any object that satisfies P "behaves" like a truly random one. In the context of graphs, Chung, Graham, and Wilson…

组合数学 · 数学 2009-03-03 Asaf Shapira , Raphael Yuster

Let A be an n by n random matrix with iid entries taken from the p-adic integers or Z/NZ. Then under mild non-degeneracy conditions the cokernel of A has a universal probability distribution. In particular, the p-part of an iid random…

组合数学 · 数学 2013-07-08 Kenneth Maples

A random walk on a directed graph gives a Markov chain on the vertices of the graph. An important question that arises often in the context of Markov chain is whether the uniform distribution on the vertices of the graph is a stationary…

数据结构与算法 · 计算机科学 2016-03-11 Sourav Chakraborty , Akshay Kamath , Rameshwar Pratap

We examine the stationary distribution of random walks on directed graphs. In particular, we focus on the {\em principal ratio}, which is the ratio of maximum to minimum values of vertices in the stationary distribution. We give an upper…

组合数学 · 数学 2016-02-04 Sinan Aksoy , Fan Chung , Xing Peng

Let $G$ be a large (simple, unlabeled) dense graph on $n$ vertices. Suppose that we only know, or can estimate, the empirical distribution of the number of subgraphs $F$ that each vertex in $G$ participates in, for some fixed small graph…

信息论 · 计算机科学 2023-08-08 Shahar Stein Ioushua , Ofer Shayevitz

We examine the empirical distribution of the eigenvalues and the eigenvectors of adjacency matrices of sparse regular random graphs. We find that when the degree sequence of the graph slowly increases to infinity with the number of…

概率论 · 数学 2012-10-15 Ioana Dumitriu , Soumik Pal

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

We introduce and develop a theory of limits for sequences of sparse graphs based on $L^p$ graphons, which generalizes both the existing $L^\infty$ theory of dense graph limits and its extension by Bollob\'as and Riordan to sparse graphs…

组合数学 · 数学 2019-08-19 Christian Borgs , Jennifer T. Chayes , Henry Cohn , Yufei Zhao

We study random graph models for directed acyclic graphs, an important class of networks that includes citation networks, food webs, and feed-forward neural networks among others. We propose two specific models, roughly analogous to the…

物理与社会 · 物理学 2009-10-16 Brian Karrer , M. E. J. Newman

In the first part of the paper, we fix a non-CM elliptic curve $E/\mathbb{Q}$ and an odd prime $\ell$ and investigate the distribution of invariants associated to the $\ell$-volcano containing the reduction $E_p$, as $p$ ranges over primes…

数论 · 数学 2025-12-22 Anwesh Ray

We introduce a general class of algorithms and supply a number of general results useful for analysing these algorithms when applied to regular graphs of large girth. As a result, we can transfer a number of results proved for random…

组合数学 · 数学 2017-03-06 Carlos Hoppen , Nicholas Wormald

We present here random distributions on $(D+1)$-edge-colored, bipartite graphs with a fixed number of vertices $2p$. These graphs are dual to $D$-dimensional orientable colored complexes. We investigate the behavior of quantities related to…

概率论 · 数学 2018-12-04 Ariane Carrance