Sign changes of error terms related to arithmetical functions par Paulo
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چکیده
Résumé. Soit H(x) = ∑ n≤x φ(n) n − 6 π2x. Motivé par une conjecture de Erdös, Lau a développé une nouvelle méthode et il a démontré que #{n ≤ T : H(n)H(n + 1) < 0} T. Nous considérons des fonctions arithmétiques f(n) = ∑ d|n bd d dont l’addition peut être exprimée comme ∑ n≤x f(n) = αx+ P (log(x)) + E(x). Ici P (x) est un polynôme, E(x) = − ∑ n≤y(x) bn n ψ ( x n ) + o(1) avec ψ(x) = x − bxc − 1/2. Nous généralisons la méthode de Lau et démontrons des résultats sur le nombre de changements de signe pour ces termes d’erreur.
منابع مشابه
Sign changes of error terms related to arithmetical functions
Let H(x) = ∑ n≤x φ(n) n − 6 π2x. Motivated by a conjecture of Erdös, Lau developed a new method and proved that #{n ≤ T : H(n)H(n + 1) < 0} T. We consider arithmetical functions f(n) = ∑ d|n bd d whose summation can be expressed as ∑ n≤x f(n) = αx+P (log(x))+E(x), where P (x) is a polynomial, E(x) = − ∑ n≤y(x) bn n ψ ( x n ) + o(1) and ψ(x) = x− bxc − 1/2. We generalize Lau’s method and prove r...
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تاریخ انتشار 2007