Width and mode of the profile for some random trees of logarithmic height

• 成果类型: Article
• 署名作者: Devroye, Luc; Hwang, Hsien-Kuei
• 署名单位: McGill University; Academia Sinica - Taiwan
• 刊物名称: ANNALS OF APPLIED PROBABILITY
• ISSN/ISSBN: 1050-5164
• DOI: 10.1214/105051606000000187
• 发表日期: 2006
• 页码: 886-918
• 关键词: cost

摘要

We propose a new, direct, correlation-free approach based on central moments of profiles to the asymptotics of width (size of the most abundant level) in some random trees of logarithmic height. The approach is simple but gives precise estimates for expected width, central moments of the width and almost sure convergence. It is widely applicable to random trees of logarithmic height, including recursive trees, binary search trees, quad trees, plane-oriented ordered trees and other varieties of increasing trees.