答案1
我建議使用以下這些黑客之一\smash
和一些負面\mkern
或\mathrlap
(由 定義mathtools
):
\documentclass{article}
\usepackage{mathtools}
\begin{document}
$d \leftarrow \min\bigl\{ \min_{\omega \in \Omega} {u^\omega_{c'\mkern-5mu,i_{\smash{c'\mkern-5mu,t'}}^{^{\omega}}}}, r_{c'\mkern-5mu,t'}\bigr\}.$
$d \leftarrow \min\bigl\{ \min_{\omega \in \Omega} {u^\omega_{c\mathrlap{'},i_{\smash{c\mathrlap{'},t'}}^{^{\omega}}}}, r_{c'\mkern-5mu,t'}\bigr\}.$
\end{document}