Please remember:
THE PAPER FILE MUST BE THOROUGHLY CHECKED PRIOR TO SENDING, TO MAKE SURE THAT 
IT WORKS WITHOUT ERROR WHEN PRODUCING DVI OUTPUT.
 
style.tex:

\magnification=\magstep1
\hsize=15.4truecm
\vsize=21.8truecm
\baselineskip=12truept

\catcode`@=11

\abovedisplayskip=12pt plus 3pt minus 3pt
\belowdisplayskip=12pt plus 3pt minus 3pt
\abovedisplayshortskip=0pt plus 3pt
\belowdisplayshortskip=6pt plus 3pt

\def\lessraggedbottom{\topskip 10pt plus 10pt}
\lessraggedbottom

\font\titlefont=cmbx10 at 20.6truept

\newskip\myskipamount
   \myskipamount=10pt plus 1pt minus 1pt
\def\myskip{\vskip\myskipamount}
\def\mybreak{\par\ifdim\lastskip < \myskipamount\removelastskip
   \penalty-200\myskip\fi}

\outer\def\title{\bgroup\baselineskip=20truept\halign
                  \bgroup\titlefont\ignorespaces##
                  \unskip\hfill\cr}
\def\endtitle{\cr\egroup\egroup}
\def\author#1\par{\line{\bf#1\hfill}\vskip0.4truecm}
\outer\def\section#1{\vskip 0pt plus .1\vsize\penalty-250
                     \vskip 0pt plus -.1\vsize
                     \bigbreak\leftline{\bf #1}
                     \medbreak\ignorespaces}
\outer\def\subsection#1{\medbreak\noindent{\bf\ignorespaces
                        #1\unskip.\enspace}\ignorespaces}
\outer\def\proclaim#1{\mybreak\noindent\bf\ignorespaces
                      #1\unskip.\thinspace\it\ignorespaces\bgroup}
\outer\def\proclaimform#1{\noindent\bf\ignorespaces  %after formulae
                          #1\unskip.\thinspace\it\ignorespaces\bgroup}
\outer\def\endproclaim{\egroup\par\ifdim\lastskip<\myskipamount
                       \removelastskip\penalty 55\fi\myskip\rm}
\outer\def\endproclaimform{\egroup\par\rm}  %when theorem ends with formula
\outer\def\demo#1{\par\ifdim\lastskip<\medskipamount
                  \removelastskip\medskip\fi\noindent
                  {\bf\ignorespaces#1\unskip.\thinspace}\rm
                  \ignorespaces\begingroup}
\outer\def\demoform#1{\par\noindent  %when theorem ends with formula
                      {\bf\ignorespaces#1\unskip.\thinspace}\rm
                       \ignorespaces\begingroup}
\outer\def\enddemo{\endgroup\par\myskip}
\outer\def\enddemoform{\endgroup\par}  %when proof ends with formula
\def\paper{\vskip 18pt\noindent}       % when paper does not start with
                                       % a section title
\def\refs{\bigskip\bgroup\frenchspacing
          \leftline{\bf References}\medskip\baselineskip=11pt
          \parskip=0.2truecm}
\def\endrefs{\par\egroup\par}
\def\address#1{\medskip\bigskip\baselineskip14truept\noindent #1}

\footline={\ifodd\pageno\rightfootline\else\leftfootline\fi}
\def\rightfootline{\tenrm\hfil\folio}
\def\leftfootline{\tenrm\folio\hfil}
\def\makefootline{\baselineskip=24truept\line{\the\footline}}

\def\list{\bgroup\parindent=40pt\parskip=6pt}
\def\endlist{\par\egroup\medskip}
\def\varlist#1{\bgroup\parskip=6pt\parindent=#1truecm}
\def\varlistdent#1{\bgroup\setbox11=\hbox{#1\ }\parindent=\wd11}
\def\endvarlist{\par\egroup\ifdim\lastskip<1truecm
                \removelastskip\medskip\fi}
\def\varitem{\par\hang\vartextindent}
\def\vartextindent#1{\indent\llap{\hbox to\hangindent{#1\hfil}}
                     \ignorespaces}
\def\itemvar{\par\hang\textindentvar}
\def\textindentvar#1{\indent\llap{\hbox to\hangindent{\hfil#1
                      \thinspace}}\ignorespaces}

\def\pmb#1{\setbox0=\hbox{#1}%
           \kern-.025em\copy0\kern-\wd0
           \kern.05em\copy0\kern-\wd0
           \kern-0.025em\raise.0433em\box0}
\def\nix{{\phantom{0}}}
\def\NoBlackBoxes{\global\overfullrule\z@}
\NoBlackBoxes

\def\leaderfill{\leaders\hbox to 1em{\hss.\hss}\hfill}

\def\gathered{\null\,\vcenter\bgroup
\openup\jot\ialign\bgroup\hfil $\m@th\displaystyle{##}$\hfil\crcr}
\def\endgathered{\crcr\egroup\egroup}

\font\zerorm=cmr10 at 10truept

\def\fnote#1#2{\let\@sf\empty % parameter #2 (the text) is read later
  \ifhmode\edef\@sf{\spacefactor=\the\spacefactor}\/\fi
  {$\,^{#1}$}\@sf\vfootnote{#1}{#2}}
\def\vfootnote#1#2{\insert\footins\bgroup
  \interlinepenalty\interfootnotelinepenalty
  \splittopskip=\ht\strutbox % top baseline for broken footnotes
  \splitmaxdepth=\dp\strutbox \floatingpenalty=20000
  \ifdim\lastskip<2truept \removelastskip\vskip 2truept\fi
  \spaceskip=0pt \xspaceskip=0pt
  \baselineskip=11pt\zerorm
  \textindent{$\,^{#1}$}#2\footstrut\vskip 3truept\egroup}

\def\caption#1#2#3{\par\bgroup\advance\leftskip#1truecm\advance
\rightskip#1truecm\item{#2} #3\par\egroup\bigskip}

\def\ack#1{\fnote{}{#1}}

\catcode`@=12