Multiplicative functions satisfying the equation $f(m\sp 2+n\sp 2)=f(m\sp 2)+f(n\sp 2)$
Mathematica slovaca, Tome 46 (1996) no. 2-3, pp. 165-171
@article{MASLO_1996_46_2-3_a3,
author = {Chung, Pham Van},
title = {Multiplicative functions satisfying the equation $f(m\sp 2+n\sp 2)=f(m\sp 2)+f(n\sp 2)$},
journal = {Mathematica slovaca},
pages = {165--171},
year = {1996},
volume = {46},
number = {2-3},
mrnumber = {1427001},
zbl = {0888.11004},
language = {en},
url = {http://geodesic.mathdoc.fr/item/MASLO_1996_46_2-3_a3/}
}
Chung, Pham Van. Multiplicative functions satisfying the equation $f(m\sp 2+n\sp 2)=f(m\sp 2)+f(n\sp 2)$. Mathematica slovaca, Tome 46 (1996) no. 2-3, pp. 165-171. http://geodesic.mathdoc.fr/item/MASLO_1996_46_2-3_a3/