The following contruct
\begin{equation}
-\alpha \pm i\omega \quad \text{and} \quad \alpha
\end{equation}
leave the "i" glued to the "and" even with a \quad in the middle. The occurrences of \quad should always introduce a "space" in the detex-ed file.
The following contruct
leave the "i" glued to the "and" even with a \quad in the middle. The occurrences of \quad should always introduce a "space" in the detex-ed file.