Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular Function

Recall the Lebesgue's singular function. We define a Lebesgue's singular function \(L(t)\) as the unique continuous solution of the functional equation$$L(t) = qL(2t) +pL(2t-1),$$where \(p,q>0\), \(q=1-p\), \(p\ne q\).The moments of Lebesque' singular function are defined as$$M...

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Main Author: E. A. Timofeev
Format: Article
Language:English
Published: Yaroslavl State University 2016-10-01
Series:Моделирование и анализ информационных систем
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Online Access:https://www.mais-journal.ru/jour/article/view/393
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author E. A. Timofeev
author_facet E. A. Timofeev
author_sort E. A. Timofeev
collection DOAJ
description Recall the Lebesgue's singular function. We define a Lebesgue's singular function \(L(t)\) as the unique continuous solution of the functional equation$$L(t) = qL(2t) +pL(2t-1),$$where \(p,q>0\), \(q=1-p\), \(p\ne q\).The moments of Lebesque' singular function are defined as$$M_n = \int_0^1t^n dL(t), \quad n = 0, 1, \dots$$The main result of this paper is$$M_n =n^{\log_2 p} e^{-\tau(n)}\left(1 + \mathcal{O}(n^{-0.99})\right),$$where$$\tau(x) = \frac12\ln p + \Gamma'(1)\log_2 p +\frac1{\ln 2}\frac{\partial}{\partial z}\left.Li_{z}\left(-\frac{q}{p}\right)\right|_{z=1} %+\\ \\+\frac1{\ln 2}\sum_{k\ne0} \Gamma(z_k)Li_{z_k+1}\left(-\frac{q}{p}\right) x^{-z_k},$$$$z_k = \frac{2\pi ik}{\ln 2}, \ \ k\ne 0.$$The proof is based on analytic techniques such as the poissonization and the Mellin transform.
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spelling doaj-art-416dbf4804eb41c0b871f6e21be798f02025-08-20T03:01:13ZengYaroslavl State UniversityМоделирование и анализ информационных систем1818-10152313-54172016-10-0123559560210.18255/1818-1015-2016-5-595-602329Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular FunctionE. A. Timofeev0P.G. Demidov Yaroslavl State University, 14 Sovetskaya str., Yaroslavl 150003, RussiaRecall the Lebesgue's singular function. We define a Lebesgue's singular function \(L(t)\) as the unique continuous solution of the functional equation$$L(t) = qL(2t) +pL(2t-1),$$where \(p,q>0\), \(q=1-p\), \(p\ne q\).The moments of Lebesque' singular function are defined as$$M_n = \int_0^1t^n dL(t), \quad n = 0, 1, \dots$$The main result of this paper is$$M_n =n^{\log_2 p} e^{-\tau(n)}\left(1 + \mathcal{O}(n^{-0.99})\right),$$where$$\tau(x) = \frac12\ln p + \Gamma'(1)\log_2 p +\frac1{\ln 2}\frac{\partial}{\partial z}\left.Li_{z}\left(-\frac{q}{p}\right)\right|_{z=1} %+\\ \\+\frac1{\ln 2}\sum_{k\ne0} \Gamma(z_k)Li_{z_k+1}\left(-\frac{q}{p}\right) x^{-z_k},$$$$z_k = \frac{2\pi ik}{\ln 2}, \ \ k\ne 0.$$The proof is based on analytic techniques such as the poissonization and the Mellin transform.https://www.mais-journal.ru/jour/article/view/393momentsself-similarlebesgue’s functionsingularmellin transformpolylogarithmasymptotic
spellingShingle E. A. Timofeev
Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular Function
Моделирование и анализ информационных систем
moments
self-similar
lebesgue’s function
singular
mellin transform
polylogarithm
asymptotic
title Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular Function
title_full Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular Function
title_fullStr Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular Function
title_full_unstemmed Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular Function
title_short Polylogarithms and the Asymptotic Formula for the Moments of Lebesgue’s Singular Function
title_sort polylogarithms and the asymptotic formula for the moments of lebesgue s singular function
topic moments
self-similar
lebesgue’s function
singular
mellin transform
polylogarithm
asymptotic
url https://www.mais-journal.ru/jour/article/view/393
work_keys_str_mv AT eatimofeev polylogarithmsandtheasymptoticformulaforthemomentsoflebesguessingularfunction