\documentclass[a4j,12pt]{jarticle}
\usepackage{amsmath,amsthm,txfonts}
\usepackage[dviout]{graphicx}
\def\d{\textnormal{d}}
\def\({\left(}
\def\){\right)}
\def\p{\partial}
\def\lp{\left\{}
\def\rp{\right\}}
\def\vec#1{\textrm{\boldmath $#1$}}
\title{}
\author{}
\date{}
\begin{document}
\maketitle
\newpage
\end{document}