In a book of math, I found a kind very very crazy of equation, an "variational equation of second order"(adsbygoogle = window.adsbygoogle || []).push({});

So, my question is: exist solution for an general equation like this:

[tex] A \frac{d^2}{dx^2} \frac{\partial F}{\partial y^{(2)}} + B \frac{d^1}{dx^1} \frac{\partial F}{\partial y^{(1)}} + C \frac{d^0}{dx^0} \frac{\partial F}{\partial y^{(0)}}= 0[/tex]

(with A, B and C being constants)

EDIT: my other question is: what you know about this kind of equation? I never saw nothing like this before...

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# Solution for a general variational equation of 2nd order

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