triqs.gfs.gf_fnt.gf_fnt_fit_and_density

High-frequency tail fitting and density evaluation for Green’s functions on Matsubara and real-frequency meshes.

Functions

density	Compute the density from a Green's function.
fit_hermitian_tail	Fit the high-frequency tail of a Green's function, imposing hermitian symmetry on the fitted moments.
fit_hermitian_tail_on_window	Fit the high-frequency tail on a restricted window, imposing hermitian moment matrices.
fit_tail	Fit the high-frequency tail of a Green's function using a least-squares procedure.
fit_tail_on_window	Fit the high-frequency tail of a Matsubara Green's function on a restricted frequency window.
replace_by_tail	Overwrite the high-frequency tail of a Matsubara Green's function.
replace_by_tail_in_fit_window	Overwrite the high-frequency portion of a Matsubara Green's function with the tail expansion.