Se fossi in te, lascerei tutto com’è.
Se proprio ci tieni, prova a compilare questo esempio
`\documentclass{amsart}
\makeatletter
\def\@settitle{\begin{center}%
\baselineskip14\p@\relax
\bfseries\@title
\end{center}%
}
\def\@setauthors{%
\begingroup
\def\thanks{\protect\thanks@warning}%
\trivlist
\centering\footnotesize \@topsep30\p@\relax
\advance\@topsep by -\baselineskip
\item\relax
\author@andify\authors
\def\\{\protect\linebreak}%
\authors%
\ifx\@empty\contribs
\else
,\penalty-3 \space \@setcontribs
\@closetoccontribs
\fi
\endtrivlist
\endgroup
}
\def\@setthanks{\def\thanks##1{\par##1}\thankses}
\makeatother
\begin{document}
\title{Titolo}
\author{Autore}
\thanks{ai miei genitori}
\maketitle
\section{sezione}
\end{document} `
Ciao
Andrea