An interactive signal flow graph solver that allows the user to create his signal flow graph using drag and drop mode and compute the overall gain. The program allows the user to save his graph as ...

The annihilation rate of the positron in a pure Fermi gas has been calculated (a) by using a ladder-graph approximation with an exponentially screened Coulomb interaction (which is nearly the static ...

I'm writing to ask for help and advice on the implementation of serialization and deserialization of ladder graph. In my application, the ladder graph might take quite some time (up to 40 min) to ...

The Schwinger parameter formalism is used to derive a new integral equation verified by the sum of the ’’open amplitudes’’ of the ladder graph series with a φ3 interaction. We prove the existence of a ...