Lerch transcendent
From specialfunctionswiki
The Lerch transcendent $\Phi$ is defined by $$\Phi(z,s,a)=\displaystyle\sum_{k=0}^{\infty} \dfrac{z^k}{(a+k)^s}.$$
Properties
Lerch transcendent polylogarithm
Relationship between Lerch transcendent and Lerch zeta
