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Lithuanian Mathematical Journal
Article . 1999 . Peer-reviewed
License: Springer TDM
Data sources: Crossref
image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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On the asymptotic independence of Dirichlet series

Authors: Laurinčikas, A.;

On the asymptotic independence of Dirichlet series

Abstract

Es seien \(g_1,\dots,g_r\) \((r>1)\) komplexwertige, auf \(\mathbb{R}\) definierte meßbare Funktionen, und damit werde für \(T>0\) ein Wahrscheinlichkeitsmaß \[ Q_T(A):=(2T)^{-1} \text{mes}\{t\in[-T,T]:\bigl( g_1(t), \dots, g_r(t)\bigr)\in A\}\quad \bigl(A\in\mathbb{B} (\mathbb{C}^r)\bigr) \] definiert, wo \(\text{mes} M\) das Lebesguemaß einer Lebesgue-meßbaren Menge \(M\subset \mathbb{R}\), \(B(S)\) die Klasse der Borelschen Mengen eines Raums \(S\) bedeutet [vgl. \textit{A. Laurinčikas}, Limit Theorems for the Riemann Zeta-Function, Kluwer, Dordrecht (1996; Zbl 0845.11002)]. \(g_1,\dots,g_r\) heißen asymptotisch unabhängig, falls \(Q_T\) für \(T\to\infty\) schwach gegen ein Wahrscheinlichkeitsmaß \(Q\) auf \((\mathbb{C}^r,B(\mathbb{C}^r))\) konvergiert, so daß \[ Q (A)=\prod^r_{j=1}Q_j(A_j)\text{ für } A\in B(\mathbb{C}^r),\;A_j\in B(\mathbb{C}) \] mit \[ Q_j(A_j)=Q(A_{j,1} \times\cdots\times A_{j,r}),\quad A_{j,m} =\begin{cases} \mathbb{C} \text{ für }m\neq j\\ A_j\text{ für }m=j \end{cases} \] gilt. Der Verf. beweist zu diesem Begriff den folgenden Satz. Es seien \(f_1,\dots,f_r\) \((r>1)\) auf \(\mathbb{R}\) definierte, komplexwertige und über \([-T,T]\) für beliebiges \(T>0\) integrable Funktionen. Für passende trigonometrische Polynome \(P_{j,n}(t)\) gelte \[ \lim_{n\to\infty} \limsup_{T\to\infty} (2T)^{-1} \int^T_{-T} \bigl|f_j(t)- P_{j,n}(t) \bigr|dt=0. \] Für \(u,v\in\mathbb{R}^r\), \(n\in\mathbb{N}\) läßt sich mit Hilfe der \(P_{j,n}\) \((1\leq j\leq r)\) und passender Besselfunktionen ein Term \(\Phi_n(u,v)\) definieren, so daß \(f_1,\dots,f_r\) genau dann asymptotisch unabhängig sind, wenn für jedes endliche Rechteck \(K\subset \mathbb{R}^r\) \(\lim_{n\to\infty} \Phi_n(u,v)=0\) gleichmäßig für \(u,v\in K\) gilt.

Keywords

convergence, probability measure, Other Dirichlet series and zeta functions

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popularity
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
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