Let be the S function being the action in physics S=S(x,y,z,t) satisfying the equation:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\frac{dS}{dt}+(1/2m)(\nabla{S})^{2}+V(x,y,z,t)=0 [/tex]

where V is the potential is there any solution (exact) to it depending on V?

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# Hamilton Jacobi equation,

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