答案1
我建议使用其中一种黑客技术\smash
以及一些负面\mkern
或\mathrlap
(由 定义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}