[Tex/LaTex] How to use `\thanks` with mutiple beamer presentations

beamer

I have previously created some beamer presentations. Now, due to my thesis presentation, I need to create one complete presentation (one big presentation that successively contains all smaller presentations). So, I am using \input{<filename>.tex}. Right now, I am with two presentations only.

Now, the problem is with the titlepage of the second presentation – it contains footnotes (\thanks) from the first presentation. Please refer to the image.

MWE

c1.tex

\documentclass{beamer}

\begin{document}
\input{c2}
\input{c3}
\end{document}

c2.tex

\author{a\thanks{a}, b\thanks{b}}

\section{start}
\maketitle

\begin{frame}
Frame 1/1
\end{frame}
\begin{frame}
Frame 2/1
\end{frame}

c3.tex

\author{c\thanks{c}, d\thanks{d}}

\section{start-2}
\maketitle

\begin{frame}
Frame 1/2
\end{frame}
\begin{frame}
Frame 2/2
\end{frame}

How to resolve it?

Best Answer

You just need to empty the internal variable \@thanks manually:

\begin{document}
\author{a\thanks{a}, b\thanks{b}}

\maketitle

\makeatletter
\def\@thanks{}
\makeatother

\author{c\thanks{c}, d\thanks{d}}

\maketitle

\end{document}
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