teared UI

ui.tex

\documentclass{article}
\usepackage[utf8]{inputenc}
\usepackage{amsmath}

\title{teared ui}
\author{Sebastian Silbermann}
\date{May 2021}

\begin{document}

\begin{align*} 
\mathit{UI}_{t_1} &= f(state_{t_1}) + g(state_{t_1})\\
\mathit{UI}_{t_2} &= f(state_{t_2}) + g(state_{t_2})\\
\mathit{UI}_{teared} &=f(state_{t_1}) + g(state_{t_2})\\
\end{align*}

\end{document}