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Random graphs defined by an occurrence probability that is invariant under node aggregation have been identified recently in the context of network renormalization. The invariance property requires that edges are drawn with a specific…

谱理论 · 数学 2025-09-18 Alessio Catanzaro , Rajat Subhra Hazra , Diego Garlaschelli

We investigate the distribution of eigenvalues of weighted adjacency matrices from a specific ensemble of random graphs. We distribute $N$ vertices across a fixed number $\kappa$ of components, with asymptotically $\alpha_j \dot N$ vertices…

数学物理 · 物理学 2024-09-30 Valentin Vengerovsky

A random walk is a basic stochastic process on graphs and a key primitive in the design of distributed algorithms. One of the most important features of random walks is that, under mild conditions, they converge to a stationary distribution…

概率论 · 数学 2020-06-19 Leran Cai , Thomas Sauerwald , Luca Zanetti

We consider the random Markov matrix obtained by assigning i.i.d. non-negative weights to each edge of the complete oriented graph. In this study, the weights have unbounded first moment and belong to the domain of attraction of an…

谱理论 · 数学 2017-06-30 Charles Bordenave , Pietro Caputo , Djalil Chafaï , Daniele Piras

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

We review results on linearly edge-reinforced random walks. On finite graphs, the process has the same distribution as a mixture of reversible Markov chains. This has applications in Bayesian statistics and it has been used in studying the…

概率论 · 数学 2007-05-23 Franz Merkl , Silke W. W. Rolles

In this paper, we present an overview of different types of random walk strategies with local and non-local transitions on undirected connected networks. We present a general approach to analyzing these strategies by defining the dynamics…

统计力学 · 物理学 2020-07-08 A. P. Riascos , José L. Mateos

This paper systematically studies the behavior of the leading eigenvectors for independent edge undirected random graphs generated from a general latent position model whose link function is possibly infinite rank and also possibly…

统计理论 · 数学 2025-01-28 Minh Tang , Joshua R. Cape

We consider the edge-reinforced random walk with multiple (but finitely many) walkers which influence the edge weights together. The walker which moves at a given time step is chosen uniformly at random, or according to a fixed order.…

概率论 · 数学 2023-11-16 Nina Gantert , Fabian Michel , Guilherme Reis

In this work, we are concerned with existence and uniqueness of invariant measures for path-dependent random diffusions and their time discretizations. The random diffusion here means a diffusion process living in a random environment…

概率论 · 数学 2017-06-20 Jianhai Bao , Jinghai Shao , Chenggui Yuan

We propose a model of random walks on weighted graphs where the weights are interval valued, and connect it to reversible imprecise Markov chains. While the theory of imprecise Markov chains is now well established, this is a first attempt…

最优化与控制 · 数学 2016-09-20 Damjan Škulj

We investigate the spectrum of the infinitesimal generator of the continuous time random walk on a randomly weighted oriented graph. This is the non-Hermitian random nxn matrix L defined by L(j,k)=X(j,k) if k<>j and…

概率论 · 数学 2014-02-18 Charles Bordenave , Pietro Caputo , Djalil Chafai

We consider Markov chains with random transition probabilities which, moreover, fluctuate randomly with time. We describe such a system by a product of stochastic matrices, $U(t)=M_t\cdots M_1$, with the factors $M_i$ drawn independently…

数学物理 · 物理学 2018-11-14 G. C. P. Innocentini , M. Novaes

We prove that for a random walk on the real line whose increments have zero mean and are either integer-valued or spread out (i.e. the distributions of the steps of the walk are eventually non-singular), the Markov chain of overshoots above…

概率论 · 数学 2019-05-14 Aleksandar Mijatović , Vladislav Vysotsky

We consider one-dependent random walks on $\mathbb{Z}^d$ in random hypergeometric environment for $d\ge 3$. These are memory-one walks in a large class of environments parameterized by positive weights on directed edges and on pairs of…

概率论 · 数学 2020-08-10 Tal Orenshtein , Christophe Sabot

We study eigenvalue distribution of the adjacency matrix $A^{(N,p, \alpha)}$ of weighted random bipartite graphs $\Gamma= \Gamma_{N,p}$. We assume that the graphs have $N$ vertices, the ratio of parts is $\frac{\alpha}{1-\alpha}$ and the…

数学物理 · 物理学 2013-12-03 Valentin Vengerovsky

We give a generalization to a continuous setting of the classic Markov chain tree Theorem. In particular, we consider an irreducible diffusion process on a metric graph. The unique invariant measure has an atomic component on the vertices…

概率论 · 数学 2020-02-04 Michele Aleandri , Matteo Colangeli , Davide Gabrielli

We study the inverse problem of determining a finite weighted graph $(X,E)$ from the source-to-solution map on a vertex subset $B\subset X$ for heat equations on graphs, where the time variable can be either discrete or continuous. We prove…

谱理论 · 数学 2023-01-05 Emilia Blåsten , Hiroshi Isozaki , Matti Lassas , Jinpeng Lu

Although the spectral properties of random graphs have been a long-standing focus of network theory, the properties of right eigenvectors of directed graphs have so far eluded an exact analytic treatment. We present a general theory for the…

无序系统与神经网络 · 物理学 2021-03-12 Fernando L. Metz , Izaak Neri

We consider the universality of the nearest neighbour eigenvalue spacing distribution in invariant random matrix ensembles. Focussing on orthogonal and symplectic invariant ensembles, we show that the empirical spacing distribution…

概率论 · 数学 2015-01-23 Kristina Schubert
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