triqs.gfs.backwd_compat.gf_legendre.GfLegendre.replace_by_tail_in_fit_window

GfLegendre.replace_by_tail_in_fit_window(*args, **kw)

Dispatched C++ function(s).

[1] (g: Gf[MeshImFreq, 2], tail: ndarray[complex, 3])
  -> void

Overwrite the high-frequency portion of a Matsubara Green’s function with the tail expansion.

The cutoff \(n_{\min}\) is first set automatically from the tail-fit window of the mesh. Then the function delegates to replace_by_tail.

Parameters:

gGf[MeshImFreq, 2]

The Matsubara Green’s function to modify in place.

tailndarray[complex, 3]

The high-frequency moments used to build the tail.