Editing Multiplicative function (section)

==References==
* See chapter 2 of {{Apostol IANT}}
* P. J. McCarthy, Introduction to Arithmetical Functions, Universitext. New York: Springer-Verlag, 1986. 
* {{cite journal |title=Efficient estimation of a multivariate multiplicative volatility model |journal=Journal of Econometrics |date=2010 |volume=159 |issue=1 |pages=55–73 |doi=10.1016/j.jeconom.2010.04.007 |s2cid=54812323 |url=http://sticerd.lse.ac.uk/dps/em/em541.pdf |last1=Hafner |first1=Christian M. |last2=Linton |first2=Oliver }}
*{{cite journal 
|author=P. Haukkanen 
|title=Some characterizations of specially multiplicative functions
|journal=Int. J. Math. Math. Sci.
|volume=2003 
|pages=2335–2344
|year=2003
|issue=37 
|doi=10.1155/S0161171203301139 
|doi-access=free
|url=https://www.emis.de/journals/HOA/IJMMS/Volume2003_37/515979.abs.html
 }}
*{{cite journal 
|author=P. Haukkanen 
|title=Extensions of the class of multiplicative functions 
|journal=East–West Journal of Mathematics
|volume=14 
|issue=2 
|pages=101–113
|year=2012
|url=http://eastwestmath.org/index.php/ewm/article/view/100/98
 }}
*{{cite journal 
|author=DB Lahiri
|title=Hypo-multiplicative number-theoretic functions 
|journal=Aequationes Mathematicae
|volume=8
|issue=3
|pages=316–317 
|year=1972 |doi=10.1007/BF01844515 
}}

*{{cite journal 
|author=D. Rearick 
|title=Semi-multiplicative functions 
|journal=Duke Math. J.
|volume=33
|pages=49–53 
|year=1966}}

*{{cite journal 
|author=L. Tóth 
|title=Two generalizations of the Busche-Ramanujan identities 
|journal=International Journal of Number Theory
|volume=9
|pages=1301–1311 
|year=2013 |issue=5 
|doi=10.1142/S1793042113500280 
|arxiv=1301.3331 
}}
*{{cite journal 
|author=R. Vaidyanathaswamy 
|author-link=Ramaswamy S. Vaidyanathaswamy
|title=The theory of multiplicative arithmetic functions 
|journal=Transactions of the American Mathematical Society 
|volume=33 
|issue=2 
|pages=579–662 
|year=1931 
|doi=10.1090/S0002-9947-1931-1501607-1
|doi-access=free }}
*S. Ramanujan, Some formulae in the analytic theory of numbers. Messenger 45 (1915), 81--84.

*E. Busche, Lösung einer Aufgabe über Teileranzahlen.  Mitt. Math. Ges. Hamb. 4, 229--237 (1906)

*A. Selberg: Remarks on multiplicative functions. Number theory day (Proc. Conf., Rockefeller Univ., New York, 1976), pp. 232–241, Springer, 1977.