minor corrections in theory section

Manuscript/GW-srDFT.tex

@@ -359,7 +359,7 @@ The screened two-electron integrals
 \end{equation}
 are obtained via the contraction of the bare two-electron integrals \cite{Gill_1994} 
 \begin{equation}
-	(pq|rs) = \iint \MO{p}(\br{1}) \MO{q}(\br{1}) \frac{1}{r_{12}} \MO{r}(\br{2}) \MO{s}(\br{2}) \dbr{1} \dbr{2},
+	(pq|rs) = \iint \frac{\MO{p}(\br{}) \MO{q}(\br{}) \MO{r}(\br{}') \MO{s}(\br{}')}{\abs*{\br{} - \br{}'}} \dbr{} \dbr{}',
 \end{equation}
 and the transition densities $(\bX+\bY)_{ia}^{m}$ originating from a (direct) random phase approximation (RPA) calculation \cite{Casida_1995, Dreuw_2005}
 \begin{equation}