PUBLICATIONS DE L'INSTITUT MATHÉMATIQUE (BEOGRAD) (N.S.) Vol. 41(55), pp. 3141 (1987) 

SUMS OF PRODUCTS OF CERTAIN ARTHMETICAL FUNCTIONSAleksandar Ivi\'cKatedra za matematiki, RGF Univerziteta u Beogradu, Djusina, Beograd, YugoslaviaAbstract: Sharp asymptotic formulae for certain sums of the type $\sum_{n\leq x}f(n)g(n)$ are derived, where $f$ is a suitable multiplicative and $g$ a suitable additive function. The proofs are based on an analytic method which consists of considering the Dirichlet series generated by $f(n)z^{g(n)}$, $z$ complex. Classification (MSC2000): 10H25 Full text of the article:
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