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Jun 26, 2019 at 8:39 comment added MathDG Thank you very much for your comprehensive explanation
Jun 25, 2019 at 21:17 history edited Robert Bryant CC BY-SA 4.0
Put in a proof of the normal form.
Jun 22, 2019 at 17:50 comment added Robert Bryant @exxxit8: Yes, that is correct.
Jun 22, 2019 at 17:27 comment added MathDG Thank you very much for your precious help! so, if I understand correctly, any $E$, $F$ and $G$ that satisfy $EG-F^2=1$ and $x$ positive function (chosen as desired), will be a pair $(g, x)$ that satisfies (1). Is that so?
Jun 22, 2019 at 17:11 vote accept MathDG
Jun 22, 2019 at 16:15 history answered Robert Bryant CC BY-SA 4.0