
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%      Please, do not modify the preamble. Do
%      not use other packages apart from the
%      ones already selected. Rename this file
%      using your name and surname(s).
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\documentclass[a4paper, 11pt]{article}
\usepackage[paper=a4paper,width=15.5cm,height=20cm,top=3cm,left=3cm]{geometry}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
\usepackage{mathtools, amssymb, latexsym, tikz}

\newcommand{\abstracttitle}[1]{{ \centering \LARGE \textbf{#1}\\ \vspace*{0.7cm} }}
\newcommand{\Author}[2]{{ \centering \underline{#1}, \textsf{#2}\\ \vspace*{0.25cm} }}
\newcommand{\abstracttext}[1]{ \vspace{0.6cm} #1 }


%%%%%%%%%%%%%%%%%%%%
%     Abstract
%%%%%%%%%%%%%%%%%%%%
\begin{document}

\abstracttitle{% TITLE OF YOUR TALK
}

% The author who is giving the talk
\Author{
%%%%% NAME and SURNAME(s)
}
{%%%% AFFILIATION
}

\abstracttext{ %%%%% YOUR ABSTRACT

}

\begin{thebibliography}{9}
\end{thebibliography}

\end{document}
