Equation 17.17.103B7363400CA2

\begin{equation} \Gamma _\lambda (z)= \begin{cases} \lambda \log |z|^2-\log (1+|z|^2)+H(\lambda ), & |z|^2\leq \lambda /(1-\lambda ),\\ 0, & |z|^2\geq \lambda /(1-\lambda ). \end{cases} \end{equation}