there are several equations with domains. Some of these equations include cases.
Do you know any way that allows a consistent horizontal alignment of the domains?
The environment cases inside align results in that domains are not aligned at the same position.
Example
\begin{align}
a_i &=
\begin{dcases}
b_i & i \leq 0 \\
c_i & i < 0
\end{dcases} \\
d_i &= e_i &\forall i
\end{align}
Thank you in advance and happy New Year!
Phillip