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Generalized sine equations,II

Authors:

Pavlos Sinopoulos

Institution:

1. 18 Vergovitsas Street, GR-11475, Athens, Greece

Abstract:

In this paper we solve the equations

$\begin{gathered} f(x + y)f(x - y) = \sum\limits_{ij = 0}^2 {\alpha _{ij} f(x)^i f(y)^j ,} \hfill \\ f(x + y)f(x - y) = \sum\limits_{j = 0}^2 {f_j (x)f(y)^j ,} \hfill \\ \end{gathered}$

Keywords:	AMS (1991) subject classification" target="_blank">AMS (1991) subject classification 39B22 39B32 39B52
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