\documentclass{article}[11pt]
\usepackage[cp1250]{inputenc}
\usepackage[OT4]{fontenc}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsthm}


\author{Your Name}
\title{Title of your talk}

\newtheorem{theorem}{Theorem}[section]



\begin{document}

\maketitle

Here paste your abstract.

\end{document}

