This is an example for an abstract for the GPSD-2018. You may use normal \LaTeXe\ commands, but you are not allowed to create your own commands.
Mathematical formulas are possible, as well within text line with $...$, $$...$$, \[...\]
or as equation-, eqnarray-, align-, and/or aligned-environment. You may use labels in the usual environments.
You may add references, please, use the following template:
%
\begin{enumerate}[(1)]
\item
J. Jacod, A. N. Shiryaev (2003). \textit{Limit Theorems for Stochastic Processes}, Springer-Verlag
\item
J. Jacod, A. N. Shiryaev (1998). Local martingales and the fundamental asset pricing theorems in the discrete-time case. \textit{Finance and Stochastics} 2(3), 259--273
\end{enumerate}