Translations:Synthetic seismogram with multiples/19/en

${\begin{aligned}H\left(Z\right)={\frac {{\varepsilon }_{1}Z+{\varepsilon }_{2}Z^{2}+\dots {.+.}{\varepsilon }_{N}Z^{N}}{{1+}g_{1}Z+g_{2}Z^{2}+.+g_{N}Z^{N}}}.\end{aligned}}$

(27)