\documentclass[10pt]{article}

\usepackage{amsmath}
\usepackage{amssymb}

% \pdfpagewidth 8.5in
% \pdfpageheight 11in

\setlength{\topmargin}{-.25in}
\setlength{\headheight}{0in}
\setlength{\headsep}{0in}
\setlength{\topskip}{0in}
\setlength{\textheight}{9.50in}
\setlength{\footskip}{0.375in}
\setlength{\oddsidemargin}{0in}
\setlength{\evensidemargin}{0in}
\setlength{\textwidth}{6.5in}

% \newcommand\deb{\mbox{\boldmath$\delta$}}

\def\noss{\noalign{\smallskip}}

\def\pa{\partial}

\def\al{\alpha}
\def\be{\beta}
\def\ga{\gamma} \def\Ga{\Gamma}
\def\de{\delta} \def\De{\Delta}
\def\ep{\epsilon}
\def\ka{\kappa}
\def\la{\lambda} \def\La{\Lambda}
\def\si{\sigma} \def\Si{\Sigma}
\def\om{\omega} \def\Om{\Omega}

\def\bAA{{\mathbb{A}}}
\def\bRR{{\mathbb{R}}}
\def\bCC{{\mathbb{C}}}
\def\bHH{{\mathbb{H}}}
\def\bOO{{\mathbb{O}}}

\def\SO{{\rm SO}}
\def\SU{{\rm SU}}
\def\SL{{\rm SL}}
\def\USp{{\rm USp}}
\def\U{{\rm U}}
\def\A{{\rm A}}
\def\B{{\rm B}}
\def\C{{\rm C}}
\def\D{{\rm D}}
\def\E{{\rm E}}
\def\F{{\rm F}}

\def\Half{\textstyle \frac12}
\def\Third{\textstyle \frac13}
\def\Quarter{\textstyle \frac14}

\def\sss{\scriptscriptstyle}
\def\ssr{\scriptscriptstyle\rm}
\def\.{{\mkern 1.5mu}}
\def\;{{\mkern -1mu}}
\def\nurho{\nu\;\rho}
\def\nurhosi{\nurho\.\si}
\def\rhosi{\rho\.\si}

\def\myst{\rule[-1.5mm]{0mm}{5mm}}
\def\mysta{\rule[-2mm]{0mm}{5.5mm}}
\def\mystb{\rule[-1.5mm]{0mm}{5.5mm}}
\def\mystab{\rule[-2mm]{0mm}{6mm}}

\newcommand\fraq[2]{\frac{\mystb\displaystyle #1}{\mysta\displaystyle #2}}
\newcommand\atoq[2]{{\mystb\displaystyle #1}\atop{\mysta\displaystyle #2}}
\newcommand\bu[1]{{\underline{#1}}}
\newcommand\bz[2]{{\bu{#1}}^{\scriptscriptstyle\rm(#2)}}
\newcommand\bzz[2]{{#1}^{\scriptscriptstyle\rm(#2)}}

\pagestyle{plain}