This PR adds elementwise multiplication spectra in real and spectral space. The real space version is very subtle. I think I've got it working for quadrature lattices but I'm not done thinking about more general lattices. This is another step towards a physical application. Combined with #50, #51 and #53 this will enable us to write down an effective action.
This PR adds elementwise multiplication spectra in real and spectral space. The real space version is very subtle. I think I've got it working for quadrature lattices but I'm not done thinking about more general lattices. This is another step towards a physical application. Combined with #50, #51 and #53 this will enable us to write down an effective action.