\documentclass{yathesis}
\usepackage{lmodern}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\begin{document}
\title{Titre thèse}
\author{my}{name}
\supervisor[professor, affiliation=Affiliation5]{Prenom5}{Nom5}
\committeepresident[professor, affiliation=Affiliation1]{Prenom1}{Nom1}
\referee[professor, affiliation=Affiliation2]{Prenom2}{Nom2}
\referee[professor, affiliation=Affiliation3]{Prenom3}{Nom3}
\examiner[seniorresearcher, affiliation=Sorbonne Université,sepcorpaffilfrench=\ à\ ]{Prenom4}{Nom4}
Université,sepcorpaffilfrench=\space à\space]{Prenom4}{Nom4}
\maketitle
\end{document}
