Implement zeta functions for n-disk scattering systems

[PhilippSchuette]

Scattering of hard balls (classical) or wave functions (quantum mechanical) on obstacles is a problem very commonly considered in both mathematics and physics. The dynamical features, in particular hyperbolicity, of such scattering on n discs in the plane are very similar to those of the geodesic flow. From there it is only a small step towards are great similarity in the calculation of resonances from zeta functions.

This project should therefore consider including classical and quantum mechanial n-disk scattering systems to leverage the mathematical and numerical similarity with the already existing implementations for Schottky surfaces.