given the propagator:(adsbygoogle = window.adsbygoogle || []).push({});

[tex]G(x,t)=\frac{1}{e^{xt}+1}[/tex]

and knowing that HG(x,t)=d(x-t) with d the "delta" function and H the Hamiltonian,then how could we construct (knowng G(x,t))the Hamiltonian?...

I one work i heard about the Green inverse function, how is it calculated?

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# Problem with propagator

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