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This paper is the second of a series devoted to the study of the dynamics of the spectrum of large random matrices. We study general extensions of the partial differential equation arising to characterize the limit spectral measure of the…

偏微分方程分析 · 数学 2024-03-20 Charles Bertucci , Jean-Michel Lasry , Pierre Louis Lions

In this work we consider random two-colourings of random linear preferential attachment trees, which includes random recursive trees, random plane-oriented recursive trees, random binary search trees, and a class of random $d$-ary trees.…

概率论 · 数学 2023-06-13 Colin Desmarais , Cecilia Holmgren , Stephan Wagner

We investigate a self-interacting random walk, whose dynamically evolving environment is a random tree built by the walker itself, as it walks around. At time $n=1,2,\dots$, right before stepping, the walker adds a random number (possibly…

概率论 · 数学 2023-11-10 János Engländer , Giulio Iacobelli , Rodrigo Ribeiro

Plane increasing trees are rooted labeled trees embedded into the plane such that the sequence of labels is increasing on any branch starting at the root. Relaxed binary trees are a subclass of unlabeled directed acyclic graphs. We…

组合数学 · 数学 2018-07-12 Michael Wallner

In this article it is shown that the Brownian motion on the continuum random tree is the scaling limit of the simple random walks on any family of discrete $n$-vertex ordered graph trees whose search-depth functions converge to the Brownian…

概率论 · 数学 2012-10-24 David Croydon

Rooted trees with probabilities are convenient to represent a class of random processes with memory. They allow to describe and analyze variable length codes for data compression and distribution matching. In this work, the Leaf-Average…

信息论 · 计算机科学 2013-02-05 Georg Böcherer

We prove a lower bound on the number of spanning two-forests in a graph, in terms of the number of vertices, edges, and spanning trees. This implies an upper bound on the average cut size of a random two-forest. The main tool is an identity…

组合数学 · 数学 2023-08-09 Harry Richman , Farbod Shokrieh , Chenxi Wu

As a flexible nonparametric learning tool, the random forests algorithm has been widely applied to various real applications with appealing empirical performance, even in the presence of high-dimensional feature space. Unveiling the…

统计理论 · 数学 2022-09-27 Chien-Ming Chi , Patrick Vossler , Yingying Fan , Jinchi Lv

In this paper, we consider the random plane forest uniformly drawn from all possible plane forests with a given degree sequence. Under suitable conditions on the degree sequences, we consider the limit of a sequence of such forests with the…

概率论 · 数学 2017-04-10 Tao Lei

We consider a model of random tree growth, where at each time unit a new vertex is added and attached to an already existing vertex chosen at random. The probability with which a vertex with degree $k$ is chosen is proportional to $w(k)$,…

概率论 · 数学 2007-05-23 Anna Rudas , Balint Toth , Benedek Valko

For normally reflected Brownian motion and for simple random walk on independently growing in time d-dimensional domains, d>=3, we establish a sharp criterion for recurrence versus transience in terms of the growth rate.

概率论 · 数学 2014-08-28 Amir Dembo , Ruojun Huang , Vladas Sidoravicius

We investigate the limiting behavior of random tree growth in preferential attachment models. The tree stems from a root, and we add vertices to the system one-by-one at random, according to a rule which depends on the degree distribution…

概率论 · 数学 2012-06-21 Anna Rudas , Imre Péter Tóth

We study the bijection between binary Galton--Watson trees in continuous time and their exploration process, both in the sub- and in the supercritical cases. We then take the limit over renormalized quantities, as the size of the population…

概率论 · 数学 2013-05-07 Mamadou Ba , Etienne Pardoux , Ahmadou Bamba Sow

Consider a rooted binary tree with n nodes. Assign with the root the abscissa 0, and with the left (resp. right) child of a node of abscissa i the abscissa i-1 (resp. i+1). We prove that the number of binary trees of size n having exactly…

组合数学 · 数学 2025-04-11 Mireille Bousquet-Mélou , Guillaume Chapuy

Construction of phylogenetic trees and networks for extant species from their characters represents one of the key problems in phylogenomics. While solution to this problem is not always uniquely defined and there exist multiple methods for…

种群与进化 · 定量生物学 2016-08-10 Nikita Alexeev , Max A. Alekseyev

The spread of infectious disease in a human community or the proliferation of fake news on social media can be modeled as a randomly growing tree-shaped graph. The history of the random growth process is often unobserved but contains…

概率论 · 数学 2021-01-15 Harry Crane , Min Xu

We study self-similarity in random binary rooted trees. In a well-understood case of Galton-Watson trees, a distribution on a space of trees is said to be self-similar if it is invariant with respect to the operation of pruning, which cuts…

概率论 · 数学 2018-08-14 Yevgeniy Kovchegov , Ilya Zaliapin

Dynamic regression trees are an attractive option for automatic regression and classification with complicated response surfaces in on-line application settings. We create a sequential tree model whose state changes in time with the…

统计方法学 · 统计学 2010-11-23 Matthew A. Taddy , Robert B. Gramacy , Nicholas G. Polson

One class of random walks with infinite memory, so called elephant random walks, are simple models describing anomalous diffusion. We present a surprising connection between these models and bond percolation on random recursive trees. We…

统计力学 · 物理学 2016-03-23 Rüdiger Kürsten

This extended abstract is dedicated to the analysis of the height of non-plane unlabelled rooted binary trees. The height of such a tree chosen uniformly among those of size $n$ is proved to have a limiting theta distribution, both in a…

组合数学 · 数学 2008-07-16 Nicolas Broutin , Philippe Flajolet
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