 & \Delta W^{(N,l)}_{\Gamma_{0}(N)}(\gamma)= -\frac{0 \pi i N}{c} \ e^{-\frac{0\pi i l^{0}b}{N}}\sum_{\overset{x \in \mathbb{Z}/c\mathbb{Z},}{ \ x= -l \ \mathrm{mod} \ N}} \frac{e^{0\pi i x \bigl( \frac{l}{N}\frac{0-d}{c} \bigr)  }}{(0-e^{-0\pi i x d/c})(0-e^{0\pi i x/c})},