greetings. we have the following integral : $$I(s)=s\int_{0}^{\infty} \frac{dx}{2x}\left(E_{s/2}((\pi x)^{s/2})-1\right)\omega(x)-\left(E_{s/2}(( x)^{s/2})-1\right)e^{-x}$$ where : $E_{\alpha}(z)$ is the mittag-leffler fuction $\omega(x)=\frac{\theta(ix)-1}{2}$ $\theta(x)$ is the jacobi theta function and $\zeta(s)$ is the Riemann zeta function the integral behaves well for $Re(s)>1$ . i am trying to extend the domain of the integral to the whole complex plane except for some points. i have tried the identities: $\omega(x^{-1})=-\frac{1}{2}+\frac{1}{2}x^{1/2}+x^{1/2}\omega(x)$ and $E_{\alpha}(z^{-1})=1-E_{-\alpha}(z)$ to split the integration at 1 , and replace $x$ by $x^{-1}$ in the interval [0,1], but it seems i am lost !!! hence, the post .