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Zbl 1024.11004
Kovács, Katalin
On some modifications of two theorems of Erd\H{o}s. (English)
[J] Acta Math. Inform. Univ. Ostrav. 6, No.1, 145-148 (1998). ISSN 1211-4774

Pairs of completely additive functions satisfying $ f_1(An+B)+f_1(Cn+D)+f_2(n) \rightarrow c$ or some other similar condition are described.
[Imre Z.Ruzsa (Budapest)]
MSC 2000:
*11A25 Arithmetic functions, etc.
11N64 Characterization of arithmetic functions

Keywords: completely additive functions

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