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We analyze a class of spatial random spanning trees built on a realization of a homogeneous Poisson point process of the plane. This tree has a simple radial structure with the origin as its root. We first use stochastic geometry arguments…

概率论 · 数学 2007-05-23 Francois Baccelli , Charles Bordenave

Consider a random regular graph of fixed degree $d$ with $n$ vertices. We study spectral properties of the adjacency matrix and of random Schr\"odinger operators on such a graph as $n$ tends to infinity. We prove that the integrated density…

数学物理 · 物理学 2014-05-09 Leander Geisinger

We investigate the bottom of the spectra of infinite quantum graphs, i.e., Laplace operators on metric graphs having infinitely many edges and vertices. We introduce a new definition of the isoperimetric constant for quantum graphs and then…

谱理论 · 数学 2018-12-17 Aleksey Kostenko , Noema Nicolussi

In this article we investigate the spectral properties of the infinitesimal generator of an infinite system of master equations arising in the analysis of the approach to equilibrium in statistical mechanics. The system under investigation…

数学物理 · 物理学 2022-01-31 Sabine Boegli , Pierre-A. Vuillermot

In this paper we investigate the eigenvalue statistics of exponentially weighted ensembles of full binary trees and $p$-branching star graphs. We show that spectral densities of corresponding adjacency matrices demonstrate peculiar…

统计力学 · 物理学 2017-08-02 V. Kovaleva , Yu. Maximov , S. Nechaev , O. Valba

Consider the d-dimensional lattice Z^d where each vertex is ``open'' or ``closed'' with probability p or 1-p, respectively. An open vertex v is connected by an edge to the closest open vertex w such that the dth co-ordinates of v and w…

概率论 · 数学 2016-09-07 Sreela Gangopadhyay , Rahul Roy , Anish Sarkar

The random connection model is a random graph whose vertices are given by the points of a Poisson process and whose edges are obtained by randomly connecting pairs of Poisson points in a position dependent but independent way. We study…

概率论 · 数学 2018-08-06 Günter Last , Franz Nestmann , Matthias Schulte

We analyze the eigenvalues of the adjacency matrices of a wide variety of random trees. Using general, broadly applicable arguments based on the interlacing inequalities for the eigenvalues of a principal submatrix of a Hermitian matrix and…

概率论 · 数学 2011-04-12 Shankar Bhamidi , Steven N. Evans , Arnab Sen

We give new general formulas for the asymptotics of the number of spanning trees of a large graph. A special case answers a question of McKay (1983) for regular graphs. The general answer involves a quantity for infinite graphs that we call…

组合数学 · 数学 2010-04-27 Russell Lyons

We survey results concerning the spectral properties of limit-periodic operators. The main focus is on discrete one-dimensional Schr\"odinger operators, but other classes of operators, such as Jacobi and CMV matrices, continuum…

谱理论 · 数学 2018-02-19 David Damanik , Jake Fillman

We analyze a class of parametrized Random Matrix models, introduced by Rosenzweig and Porter, which is expected to describe the energy level statistics of quantum systems whose classical dynamics varies from regular to chaotic as a function…

凝聚态物理 · 物理学 2007-05-23 Nilanjana Datta , Herve Kunz

Degree distribution, or equivalently called degree sequence, has been commonly used to be one of most significant measures for studying a large number of complex networks with which some well-known results have been obtained. By contrast,…

物理与社会 · 物理学 2020-02-19 Fei Ma , Xiaoming Wang , Ping Wang

In recent work on equiangular lines, Jiang, Tidor, Yuan, Zhang, and Zhao showed that a connected bounded degree graph has sublinear second eigenvalue multiplicity. More generally they show that there cannot be too many eigenvalues near the…

概率论 · 数学 2024-01-17 Mikolaj Fraczyk , Ben Hayes , Madhu Sudan , Yufei Zhao

Directed covers of finite graphs are also known as periodic trees or trees with finitely many cone types. We expand the existing theory of directed covers of finite graphs to those of infinite graphs. While the lower growth rate still…

概率论 · 数学 2009-10-05 Lorenz A. Gilch , Sebastian Müller

Measuring the complexity of tree structures can be beneficial in areas that use tree data structures for storage, communication, and processing purposes. This complexity can then be used to compress tree data structures to their…

信息论 · 计算机科学 2023-09-19 Amirmohammad Farzaneh , Mihai-Alin Badiu , Justin P. Coon

In 1986, Janson showed that the number of edges in the union of $k$ random spanning trees in the complete graph $K_n$ is a shifted Poisson distribution. Using results from the theory of electrical networks, we provide a new proof of this…

组合数学 · 数学 2020-02-17 Austen James , Matthew Larson , Daniel Montealegre , Andrew Salmon

Random walks on a graph reflect many of its topological and spectral properties, such as connectedness, bipartiteness and spectral gap magnitude. In the first part of this paper we define a stochastic process on simplicial complexes of…

组合数学 · 数学 2017-02-20 Ori Parzanchevski , Ron Rosenthal

In this article, we define discrete analogue of generalized Hardy spaces and its separable subspace on a homogenous rooted tree and study some of its properties such as completeness, inclusion relations with other spaces, separability,…

泛函分析 · 数学 2016-08-12 Perumal Muthukumar , Saminathan Ponnusamy

The authors study the spectral theory of self-adjoint operators that are subject to certain types of perturbations. An iterative introduction of infinitely many randomly coupled rank-one perturbations is one of our settings. Spectral…

谱理论 · 数学 2019-02-08 Dale Frymark , Constanze Liaw

The number of self-adjoint extensions of a symmetric operator acting on a complex Hilbert space is characterized by its deficiency indices. Given a locally finite unoriented simple tree, we prove that the deficiency indices of any discrete…

泛函分析 · 数学 2015-05-18 Sylvain Golénia , Christoph Schumacher