where $r_{\text{min}} = \min(r,r')$ and $r_{\text{max}} = \max(r,r')$, and $G^{\sigma,\text{str}}_{iL,jL'}(E)$ is the structural GF, describing backscattering effects.
where $r_{\text{min} = \min(r,r\')$ and $r_{\text{max} =
\max(r,r\')$, and $G\^{\sigma,\text{str}}_{iL,jL\'}(E)$ is the
structural GF, describing backscattering effects.
Near the Fermi energy ($E_\text{F}$) one may approximate
Near the Fermi energy ($E_\text{F}$) one may approximate