# How to add multiple affiliations (institutes) to one single author in beamer class?

I am using the beamer class to produce a presentation out of it. Now I want to assign multiple affiliations to one author. Until now, I tried something like this:

\author{author1\inst{1}$^{,}$\inst{2}}


which works fine except that in this way your author will be shown as its name with a "," as a superscript. You see this for example in the footline.

What would be a proper way to do this?

Meanwhile I found a very straight forward approach by try and error. Multiple affiliations can just be included by using a comma inside of the \inst command. For my example, it would look like this:

\author{author1\inst{1,2}}


Sometimes, the world can be very easy...

I think beameruserguide (Section 10.1: Adding a title Page, page 87) shows a good solution.

\author[author1]{author1\inst{1}$^{,}$\inst{2}}


The short author name (which is in between [...]) will be shown in footline.

\documentclass{beamer}
\usetheme{Warsaw}

\title{This is a presentation}
\author[Me]{Author\inst{first institute}$^{,}$\inst{second institute}}

\begin{document}

\maketitle

\begin{frame}{First frame}
\end{frame}

\end{document}