Table 1 Results of CFE, CFS, and CFF for t → ∞

CFE

\({{{\rm{Im}}}}\,{\omega }_{{{{\rm{c}}}}} > -\gamma\)

Eq. (8)

× 

× 

CFS

the same as CFE

CFF

\({\omega }_{{{{\rm{r}}}}}\in {\mathbb{R}}\)

Eq. (26)

✓

✓