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Doctoral Thesis
DOI
https://doi.org/10.11606/T.104.2023.tde-24082023-084945
Document
Author
Full name
Bruna Luiza de Faria Rezende
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Carlos, 2023
Supervisor
Committee
Gava, Renato Jacob (President)
Diniz, Marcio Alves
Lebensztayn, Élcio
Salasar, Luis Ernesto Bueno
Vargas Junior, Valdivino
Title in Portuguese
Teoremas limite para variáveis aleatórias de Bernoulli dependentes
Keywords in Portuguese
Flutuação Gaussiana
Lei forte dos grandes números
Princípio da invariância fraco e quase certo
Teorema central do limite
Variáveis aleatórias Bernoulli dependentes
Abstract in Portuguese
Neste trabalho, consideramos uma sequência de variáveis de Bernoulli correlacionadas cuja probabilidade de sucesso do ensaio atual depende condicionalmente dos ensaios anteriores. Essa probabilidade condicional é dada como uma função linear da média da amostra e possui dois parâmetros dos quais um deles pode assumir valores negativos. Estabelecemos para este modelo a lei forte dos grandes números, uma convergência quase certa e em Lm, uma flutuação Gaussiana da soma das variáveis aleatórias com a distribuição proposta, um princípio da invariância fraco e quase certo, o teorema central do limite e a lei do logaritmo iterado. Além disso, aplicamos todos os nossos resultados ao passeio aleatório minimal, um modelo físico com características interessantes de difusão.
Title in English
Limit theorems for dependent Bernoulli random variables
Keywords in English
Almost sure and weak invariance principle
Central limit theorem
Dependent Bernoulli random variables
Gaussian flutuation
Strong law of large numbers
Abstract in English
In this work, we consider a sequence of correlated Bernoulli variables whose probability of success for the current trial depends conditionally on previous trials. This conditional probability is given as a linear function of the sample mean and has two parameters of which one can assume negative values. We established for this model the strong law of large numbers, an almost sure and Lm convergence, a Gaussian fluctuation of the sum of the random variables with the proposed distribution, an almost sure invariance principle and a weak invariace pinciple, the central limit theorem and the law of the iterated logarithm. Furthermore, we apply all our results to the minimal random walk, a physical model with interesting diffusion characteristics.
 
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Publishing Date
2023-08-24
 
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