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%-------------------------------------------------------------------

\begin{document}

%-------------------------------------------------------------------


\section*{potential theory}

\textbf{Potential theory} is a branch of mathematical analysis (and mathematical physics) studying the functions which are solutions of Laplace equations (harmonic functions), and some generalizations in the setting of more general elliptic partial differential equations.

\begin{itemize}%
\item \href{http://en.wikipedia.org/wiki/Potential_theory}{wikipedia}

\end{itemize}


\end{document}