2024-04-15T17:08:31Z
https://oai.zbmath.org/v1/
oai:zbmath.org:7439078
2021-12-06T13:19:55Z
39
Idir, Sadani
2020
7439078
English
Slovak Academy of Sciences, Mathematical Institute, Bratislava; De Gruyter (Sciendo), Warsaw
https://zbmath.org/07439078
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Tatra Mt. Math. Publ. 76, 71-80 (2020).
39B82
On the stability of the functional equation \(f(2x+y)+f \left(\frac{x+y}{2}\right)=\frac{2f(x)f(y)}{f(x)+f(y)}+\frac{2f(x+y)f(y-x)}{3f(y-x)-f(x+y)}\)
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