On two functional equationes connected with the equation \(\phi(x + y) + \phi(x - y) = 2\phi(x) + 2\phi(y)\) (Q2541815)
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| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On two functional equationes connected with the equation \(\phi(x + y) + \phi(x - y) = 2\phi(x) + 2\phi(y)\) |
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On two functional equationes connected with the equation \(\phi(x + y) + \phi(x - y) = 2\phi(x) + 2\phi(y)\) (English)
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1970
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