[Tex/LaTex] Accent in letters over a Letter

Question

This question already has answers here:

How do I put text over symbols?

(4 answers)

Closed 5 years ago.

I would like to write something of the sort. It's a form of an accent but I do not know how to write letters instead of just dots or a tilde.

Thank you

Answer 1

Here are three additional possibilities. They vary in (a) the symbol used to connect "e" and "m" -- a mathematical minus sign or a simple dash -- and (b) the size of the superscript material -- \scriptsize or \tiny. Not knowing what "e-m" stands for, I don't dare offer an opinion on which form is best.

\documentclass{article}
\usepackage{amsmath}
\begin{document}
$\overset{\mathit{e-m}}{\mathcal{T}}$
$\overset{\textit{e-m}}{\mathcal{T}}$
$\overset{\textit{\tiny e-m}}{\mathcal{T}}$
\end{document}