% sirs2001_2e.sty

% SIRS2001 document package -- version 1.02e

% for LaTeX version 2e



% This style file is an adaptation of

% the original LaTeX article.sty, by:

% Frank Holzwarth, Springer-Verlag Heidelberg,

% Tiergartenstrasse 17, D-6900 Heidelberg.



% Dec 1997 Modified for LaTeX2e by Neil Brown (neilb@dai.ed.ac.uk) Dept of AI,

%          University of Edinburgh. The minimum amount of work has been

%          done to get it to work with 2e. It really needs to be

%          rewritten from scratch. My changes are denoted by %NB



%NB Begin

\NeedsTeXFormat{LaTeX2e}

\ProvidesPackage{sirs}[1998/11/17 Version 1.02e]

\ProcessOptions

\typeout{Document Style `sirs2001', <version 1.02e>}

%NB End



\frenchspacing

\def~{\penalty\@M\kern3pt}



\def\thebibliography#1{\section*{References}\small\list  {\arabic{enumi}.}{\settowidth\labelwidth{#1.}\leftmargin\labelwidth    \advance\leftmargin\labelsep    \usecounter{enumi}}\def\newblock{\hskip .11em plus .33em minus -.07em}    \sloppy    \sfcode`\.=1000\relax}


\def\ds@citeauthoryear{\def\thebibliography##1{\section*{References}\small\list{}{\settowidth\labelwidth{}\leftmargin\parindent\itemindent=-\parindent    \labelsep=\z@    \usecounter{enumi}}\def\newblock{\hskip .11em plus .33em minus -.07em}    \sloppy    \sfcode`\.=1000\relax}

\def\@cite##1{##1}

\def\@lbibitem[##1]##2{\item[]\if@filesw {\def\protect####1{\string ####1\space}\immediate\write\@auxout{\string\bibcite{##2}{##1}}}\fi\ignorespaces}}%



\newif\if@envcountreset\@envcountresetfalse

\def\ds@envcountreset{\@envcountresettrue}



\def\@mbi{cmmib10}

\def\@ptsize{0} \@namedef{ds@11pt}{\def\@ptsize{1}}

\@namedef{ds@12pt}{\def\@ptsize{2}}

\def\ds@twoside{\@twosidetrue \@mparswitchtrue}

\def\ds@draft{\overfullrule 5pt}

\@options



%\ds@twoside



\lineskip 1pt \normallineskip 1pt

\def\baselinestretch{1}



%NB Begin

%\def\@normalsize{\@setsize\normalsize{12pt}\xpt\@xpt

%\abovedisplayskip=3 mm plus6pt minus 4pt

%\belowdisplayskip=3 mm plus6pt minus 4pt

%\abovedisplayshortskip=0mm plus6pt minus 2pt

%\belowdisplayshortskip=2 mm plus4pt minus 4pt}



%NB Above is the old definition, below is the new which isn't quite

% the same, but seems to match better. However commenting both out give

% a better looking output (in my opinion)



\renewcommand{\normalsize}{\fontsize{10}{12}\selectfont

\abovedisplayskip=3 mm plus6pt minus 4pt

\belowdisplayskip=3 mm plus6pt minus 4pt

\abovedisplayshortskip=0mm plus6pt minus 2pt

\belowdisplayshortskip=2 mm plus4pt minus 4pt}

%NB End



\mathchardef\Gamma="0100

\mathchardef\Delta="0101

\mathchardef\Theta="0102

\mathchardef\Lambda="0103

\mathchardef\Xi="0104

\mathchardef\Pi="0105

\mathchardef\Sigma="0106

\mathchardef\Upsilon="0107

\mathchardef\Phi="0108

\mathchardef\Psi="0109

\mathchardef\Omega="010A



\def\small{\@setsize\small{11pt}\ixpt\@ixpt

\abovedisplayskip=2.5 mm plus5pt minus 3pt

\belowdisplayskip=2.5 mm plus5pt minus 3pt

\abovedisplayshortskip=0mm plus6pt minus 2pt

\belowdisplayshortskip=2 mm plus4pt minus 4pt

\def\@listi{\leftmargin\leftmargini\topsep 4pt plus 2pt minus 2pt}}



\def\footnotesize{\@setsize\footnotesize{11pt}\ixpt\@ixpt

\abovedisplayskip=2.5 mm plus5pt minus 3pt

\belowdisplayskip=2.5 mm plus5pt minus 3pt

\abovedisplayshortskip=0mm plus6pt minus 2pt

\belowdisplayshortskip=2 mm plus4pt minus 4pt

\def\@listi{\leftmargin\leftmargini\topsep 4pt plus 2pt minus 2pt}}



\def\scriptsize{\@setsize\scriptsize{8.4pt}\viipt\@viipt}



\def\tiny{\@setsize\tiny{6pt}\vpt\@vpt}

\def\large{\@setsize\large{13.2pt}\xipt\@xipt}

\def\Large{\@setsize\Large{14.4pt}\xiipt\@xiipt}

\def\LARGE{\@setsize\LARGE{16.8pt}\xivpt\@xivpt}

\def\huge{\@setsize\huge{22pt}\xxpt\@xxpt}

\def\Huge{\@setsize\Huge{30pt}\xxvpt\@xxvpt}

%NB \@normalsize

\normalsize



\if@twoside

   \oddsidemargin  44pt

   \evensidemargin 82pt

   \marginparwidth 107pt

%\else \oddsidemargin 63pt \evensidemargin 63pt

\else \oddsidemargin 6pt \evensidemargin 6pt

 \marginparwidth 90pt

\fi

\marginparsep 11pt

\topmargin -17pt \headheight 12pt \headsep 13.66pt

%NB \footheight 12pt

\footskip 30pt

\textwidth 16.5truecm

\textheight 23.5truecm

\columnsep 1cc \columnseprule 0pt



\footnotesep 7.7pt

\skip\footins 9pt plus 4pt minus 2pt

\floatsep 12pt plus 2pt minus 2pt

\textfloatsep 8mm plus 2pt minus 4pt

\intextsep 8mm plus 2pt minus 2pt



%NB \@maxsep 8mm



\dblfloatsep 12pt plus 2pt minus 2pt

\dbltextfloatsep 20pt plus 2pt minus 4pt

%NB \@dblmaxsep 20pt



\@fptop 0pt plus 1fil \@fpsep 8pt plus 2fil \@fpbot 0pt plus 1fil

\@dblfptop0pt plus1fil \@dblfpsep8pt plus2fil\@dblfpbot 0pt plus1fil

\marginparpush 5pt



\parskip 0pt plus 1pt \parindent 1.5em \topsep 8pt plus 2pt minus 4pt

\partopsep 2pt plus 1pt minus 1pt \itemsep \z@

\@lowpenalty 51 \@medpenalty 151 \@highpenalty 301

\@beginparpenalty-\@lowpenalty\@endparpenalty-\@lowpenalty\@itempenalty -\@lowpenalty



\def\vec#1{\mathchoice{\mbox{\boldmath$\displaystyle\bf#1$}}

{\mbox{\boldmath$\textstyle\bf#1$}}

{\mbox{\boldmath$\scriptstyle\bf#1$}}

{\mbox{\boldmath$\scriptscriptstyle\bf#1$}}}



\def\@sect#1#2#3#4#5#6[#7]#8{\ifnum #2>\c@secnumdepth\def\@svsec{}\else\refstepcounter{#1}\edef\@svsec{\csname the#1\endcsname\quad }\fi\@tempskipa #5\relax\ifdim \@tempskipa>\z@\begingroup #6\relax\noindent{\hskip #3\relax\@svsec}{\interlinepenalty \@M #8\par}\endgroup\csname #1mark\endcsname{#7}\addcontentsline{toc}{#1}{\ifnum #2>\c@secnumdepth \else
\protect\numberline{\csname the#1\endcsname}\fi #7}\else  \def\@svsechd{#6\hskip #3\@svsec #8\csname #1mark\endcsname            {#7}\addcontentsline             {toc}{#1}{\ifnum #2>\c@secnumdepth \else               \protect\numberline{\csname the#1\endcsname}\fi             #7}}\fi  \@xsect{#5}}



\def\part{\par \addvspace{4ex} \@afterindentfalse \secdef\@part\@spart}



\def\@part[#1]#2{\ifnum \c@secnumdepth >\m@ne
  \refstepcounter{part}\addcontentsline{toc}{part}{\thepart
    \hspace{1em}#1}\else\addcontentsline{toc}{part}{#1}\fi {
    \parindent 0pt \raggedright\ifnum \c@secnumdepth >\m@ne \Large \bf
    Part\thepart\par\nobreak\fi\huge \bf #2\markboth{}{}\par } \nobreak \vskip 3ex \@afterheading }



\def\@spart#1{{\parindent 0pt \raggedright\huge \bf#1\par} \nobreak \vskip 3ex \@afterheading }
\def\section{\@startsection {section}{1}{\z@}{-18pt plus -4pt minus-4pt}{12pt plus 4pt minus 4pt}{\Large\bf\boldmath\pretolerance=10000\relax\rightskip=0pt plus8em}}
\def\subsection{\@startsection{subsection}{2}{\z@}{-18pt plus-4pt minus-4pt}{8pt plus 4pt minus 4pt}{\normalsize\bf\boldmath\pretolerance=10000\relax\rightskip=0pt plus8em}}
\def\subsubsection{\@startsection{subsubsection}{3}{\z@}{-18pt plus-4ptminus -4pt}{-0.5em plus -.22em minus -0.1em}{\normalsize\bf\boldmath}}

\def\paragraph{\@startsection{paragraph}{4}{\z@}{-12pt plus -4pt minus-4pt}{-0.5em plus -.22em minus -0.1em}{\normalsize\it}}

\def\subparagraph#1{\typeout{SIRS2001 Warning: You should not
    use\protect\subparagraph \space in this style.}\vskip0.5cm You should not use $\backslash${\tt subparagraph} in thisstyle.\vskip0.5cm}



\setcounter{secnumdepth}{2}



\def\appendix{\par\setcounter{section}{0}\setcounter{subsection}{0}\def\thesection{\Alph{section}}}

\leftmargini 17pt     \leftmarginii 17pt
\leftmarginiii 17pt   \leftmarginiv 17pt
\leftmarginv 10pt       \leftmarginvi 10pt
\leftmargin\leftmargini \labelwidth\leftmargini
\advance\labelwidth-\labelsep
\labelsep 5pt
\parsep 0pt plus 1pt

\def\@listi{\leftmargin\leftmargini}

\def\@listii{\leftmargin\leftmarginii \labelwidth\leftmarginii\advance\labelwidth-\labelsep \topsep 0pt plus 1pt}

\def\@listiii{\leftmargin\leftmarginiii \labelwidth\leftmarginiii\advance\labelwidth-\labelsep \topsep 0pt plus 1pt}

\def\@listiv{\leftmargin\leftmarginiv\labelwidth\leftmarginiv\advance\labelwidth-\labelsep \topsep 0pt plus 1pt}

\def\@listv{\leftmargin\leftmarginv \labelwidth\leftmarginv\advance\labelwidth-\labelsep \topsep 0pt plus 1pt}

\def\@listvi{\leftmargin\leftmarginvi \labelwidth\leftmarginvi\advance\labelwidth-\labelsep \topsep 0pt plus 1pt}

\def\labelenumi{\arabic{enumi}.}

\def\theenumi{\arabic{enumi}}

\def\labelenumii{(\alph{enumii})}

\def\theenumii{\alph{enumii}}

\def\p@enumii{\theenumi}

\def\labelenumiii{\roman{enumiii}.}

\def\theenumiii{\roman{enumiii}}

\def\p@enumiii{\theenumi(\theenumii)}

\def\labelenumiv{\Alph{enumiv}.}

\def\theenumiv{\Alph{enumiv}}

\def\p@enumiv{\p@enumiii\theenumiii}



\def\labelitemi{\bf --}

\def\labelitemii{$\bullet$}

\def\labelitemiii{$\ast$}

\def\labelitemiv{$\cdot$}



\def\verse{\let\\=\@centercr \list{}{\itemsep\z@ \itemindent -1.5em\listparindent \itemindent \rightmargin\leftmargin\advance\leftmargin 1.5em}\item[]}\let\endverse\endlist

\def\quotation{\list{}{\listparindent 1.5em \itemindent\listparindent \rightmargin\leftmargin}\item[]}\let\endquotation=\endlist

\def\quote{\list{}{\rightmargin\leftmargin}\item[]}\let\endquote=\endlist

\def\descriptionlabel#1{\hspace\labelsep \bf #1}

\def\description{\list{}{\labelwidth\z@ \itemindent-\leftmargin \let\makelabel\descriptionlabel}}\let\enddescription\endlist

\def\theequation{\arabic{equation}}

\def\titlepage{\@restonecolfalse\if@twocolumn\@restonecoltrue\onecolumn
  \else \newpage \fi \thispagestyle{empty}\c@page\z@}

\def\endtitlepage{\if@restonecol\twocolumn \else \newpage \fi}

\arraycolsep 1.4pt \tabcolsep 1.4pt \arrayrulewidth .4pt
\doublerulesep 2pt

\tabbingsep \labelsep

\skip\@mpfootins = \skip\footins

\fboxsep = 3pt \fboxrule = .4pt



%NB These are already defined in article.cls, so I'll take them out

%\newcounter {part}

%\newcounter {section}

%\newcounter {subsection}[section]

%\newcounter {subsubsection}[subsection]

%\newcounter {paragraph}[subsubsection]



\def\thepart{\Roman{part}}

\def\thesection {\arabic{section}}

\def\thesubsection {\thesection.\arabic{subsection}}

\def\thesubsubsection {\thesubsection.\arabic{subsubsection}}

\def\theparagraph {\thesubsubsection.\arabic{paragraph}}

\def\@pnumwidth{1.55em}

\def\@tocrmarg {2.55em}

\def\@dotsep{4.5}

\setcounter{tocdepth}{3}



\def\tableofcontents{\section*{Table of Contents} \@starttoc{toc}}

\def\l@part#1#2{\addpenalty{\@secpenalty} \addvspace{2.25em plus 1pt} \begingroup
 \@tempdima 3em \parindent \z@ \rightskip \@pnumwidth \parfillskip-\@pnumwidth {\Large \bf \leavevmode #1\hfil \hbox to\@pnumwidth{\hss #2}}\par \nobreak \endgroup}

\def\numberline#1{\advance\hangindent by\@tempdima\hbox to\@tempdima{\hss#1\enspace}}

%

\def\bf@dottedtocline#1#2#3#4#5{\ifnum #1>\c@tocdepth \else  \vskip \z@ plus .2pt  {\leftskip #2\relax \rightskip \@tocrmarg \parfillskip -\rightskip    \parindent #2\relax\@afterindenttrue   \interlinepenalty\@M   \leavevmode \@tempdima #3\relax \advance\leftskip \@tempdima \hbox{}\hskip  -\leftskip{\bf#4}\nobreak\leaders\hbox{$\m@th \mkern \@dotsep mu.\mkern \@dotsep       mu$}\hfill \nobreak \hbox to\@pnumwidth{\hfil\rm #5}\par}\fi}

%

\def\l@section{\vskip2mm\bf@dottedtocline{1}{0em}{1.7em}}
\def\l@subsection{\@dottedtocline{2}{1.7em}{2.3em}}
\def\l@subsubsection{\@dottedtocline{3}{4em}{2em}}
\def\l@paragraph{\@dottedtocline{4}{6em}{2em}}
\def\l@subparagraph{\@dottedtocline{5}{8em}{2em}}
\def\listoffigures{\section*{List of Figures\markboth{List of Figures}{List of Figures}}\@starttoc{lof}}
\def\l@figure{\@dottedtocline{1}{1.5em}{2.3em}}
\def\listoftables{\section*{List of Tables\markboth{List of Tables}{List of Tables}}\@starttoc{lot}}\let\l@table\l@figure
%\def\endthebibliography{\endlist\normalsize}
\newif\if@restonecol
\def\theindex{\@restonecoltrue\if@twocolumn\@restonecolfalse\fi\columnseprule \z@\columnsep 35pt\twocolumn[\section*{Index}]\markboth{Index}{Index}\thispagestyle{plain}\parindent\z@\parskip\z@ plus .3pt\relax\let\item\@idxitem}

\def\@idxitem{\par\hangindent 40pt}
\def\subitem{\par\hangindent 40pt \hspace*{20pt}}
\def\subsubitem{\par\hangindent 40pt \hspace*{30pt}}
\def\endtheindex{\if@restonecol\onecolumn\else\clearpage\fi}
\def\indexspace{\par \vskip 10pt plus 5pt minus 3pt\relax}
\def\footnoterule{\kern-3\p@\hrule width 2 true cm\kern 2.6\p@}

\long\def\@makefntext#1{\@setpar{\@@par\@tempdima \hsize
\advance\@tempdima-1em\parshape \@ne 1em\@tempdima}\par
\parindent 1em\noindent \hbox to \z@{\hss$^{\@thefnmark}$\ }#1}



\setcounter{topnumber}{2}
\def\topfraction{.9}
\setcounter{bottomnumber}{1}
\def\bottomfraction{.3}

\setcounter{totalnumber}{3}

\def\textfraction{.15}

\def\floatpagefraction{.85}

\setcounter{dbltopnumber}{2}

\def\dbltopfraction{.85}

\def\dblfloatpagefraction{.85}



%\long\def\@makecaption#1#2{

% \vskip 10pt

% \setbox\@tempboxa\hbox{{\bf #1} #2}

% \ifdim \wd\@tempboxa >\hsize \unhbox\@tempboxa\par \else \hbox

%to\hsize{\box\@tempboxa\hfil}

% \fi\vskip5pt}



%\long\def\@caption#1[#2]#3{\addcontentsline{\csname

%  ext@#1\endcsname}{#1}{\protect\numberline{\csname

%  the#1\endcsname}{\ignorespaces #2}}\par

%  \begingroup

%    \@parboxrestore

%    \@makecaption{\csname fnum@#1\endcsname}{\ignorespaces #3}\par

%  \endgroup}



        

\long\def\@makecaption#1#2{ \vskip 10pt  \setbox\@tempboxa\hbox{#1  #2} \ifdim \wd\@tempboxa >\hsize #1 #2\par \else \hbox to\hsize{\hfil\box\@tempboxa\hfil}  \fi}



%NB \newcounter{figure}

\def\thefigure{\@arabic\c@figure}

\def\fps@figure{htbp}

\def\ftype@figure{1}

\def\ext@figure{lof}

\def\fnum@figure{Fig.\thinspace\thefigure.}

\def\figure{\@float{figure}\small\rm}

\def\endfigure{\vskip-5pt\end@float}

\@namedef{figure*}{\@dblfloat{figure}}

\@namedef{endfigure*}{\end@dblfloat}





%NB \newcounter{table}

\def\thetable{\@arabic\c@table}

\def\fps@table{htbp}

\def\ftype@table{2}

\def\ext@table{lot}

\def\fnum@table{Table \thetable.}

\def\table{\@float{table}\small\rm}

\let\endtable\end@float

\@namedef{table*}{\@dblfloat{table}}

\@namedef{endtable*}{\end@dblfloat}



% LaTeX does not provide a command to enter the authors institute

% addresses. The \institute command is defined here.



\newcounter{@inst}

\newcounter{@auth}



\def\institute#1{\gdef\@institute{#1}}



\def\institutename{\par

 \begingroup

 \parskip=\z@

 \parindent=\z@

 \setcounter{@inst}{1}%

 \def\and{\par\stepcounter{@inst}%

 \noindent$^{\the@inst}$\enspace\ignorespaces}%

 \setbox0=\vbox{\def\thanks##1{}\@institute}%

 \ifnum\c@@inst=1\relax

 \else

   \setcounter{footnote}{\c@@inst}%

   \setcounter{@inst}{1}%

   \noindent$^{\the@inst}$\enspace

 \fi

 \ignorespaces

 \@institute\par

 \endgroup}



\def\@thanks{}



%NB Begin

% Latex2e doesn't like this, and is defined by latex.ltx anyway, but

% the ``star'' it shows is an asterix. By adding \ensuremath seems to

% fix it. Personally I think the latex.ltx version looks better.



%\def\@fnsymbol#1{\ifcase#1\or\star\or{\star\star}\or{\star\star\star}%

%   \or \dagger\or \ddagger\or

%   \mathchar "278\or \mathchar "27B\or \|\or **\or \dagger\dagger

%   \or \ddagger\ddagger\else\@ctrerr\fi\relax}



% The fixed version

\def\@fnsymbol#1{\ensuremath{\ifcase#1\or \star\or {\star\star}\or

   {\star\star\star} \or \dagger\or \ddagger\or

   \mathchar "278\or \mathchar "27B\or \|\or **\or \dagger\dagger

   \or \ddagger\ddagger\else\@ctrerr\fi\relax}}

%NB End



\def\inst#1{\unskip$^{#1}$}



\def\subtitle#1{\gdef\@subtitle{#1}}

\def\@subtitle{}



\def\maketitle{\par\begingroup\parindent=\z@\def\thefootnote{\fnsymbol{footnote}} \if@twocolumn\twocolumn[\@maketitle]\else \newpage\global\@topnum\z@ \@maketitle \fi\thispagestyle{empty}\@thanks\endgroup\let\maketitle\relax\let\@maketitle\relax\gdef\@thanks{}\gdef\@author{}\gdef\@title{}\gdef\@subtitle{}\let\thanks\relax}



\def\@maketitle{\newpage

 \vspace*{10mm}

 \begin{center}%

 {\LARGE \bf\boldmath

  \pretolerance=10000

  \@title \par}\vskip .8cm

\if!\@subtitle!\else {\Large \bf\boldmath

  \vskip -.65cm

  \pretolerance=10000

  \@subtitle \par}\vskip .8cm\fi

{\normalsize\bf\lineskip .5em

\@author\vskip.35cm}

 {\small\rm\institutename}

 \end{center}%

 }



\mark{{}{}}



% Define `abstract' environment

\def\abstract{\list{}{\advance\topsep by0cm\relax\small\rm\leftmargin=0cm\labelwidth=\z@\listparindent=\z@\itemindent\listparindent\rightmargin\leftmargin}\item[\hskip\labelsep\bf Abstract.]}\let\endabstract=\endlist\def\quote{\list{}{\rightmargin\leftmargin}\item[]}\let\endquote=\endlist



\def\ps@headings{\def\@evenhead{}%

\let\@oddhead\@evenhead

\let\@evenfoot\@evenhead

\let\@oddfoot\@evenhead

\def\sectionmark##1{}%

\def\subsectionmark##1{}}

\def\ps@myheadings{\let\@mkboth\@gobbletwo

\def\@oddhead{\hbox{}\small\rm\rightmark \hfil\thepage}%

\def\@oddfoot{}\def\@evenhead{\small\rm\thepage\hfil

\leftmark\hbox {}}%

\def\@evenfoot{}\def\sectionmark##1{}\def\subsectionmark##1{}}



\def\today{\ifcase\month\or

 January\or February\or March\or April\or May\or June\or

 July\or August\or September\or October\or November\or December\fi

 \space\number\day, \number\year}



\ps@headings \pagenumbering{arabic} \onecolumn

\if@twoside\else\raggedbottom\fi



% new environments and theorems

% borrowed form the LTMP-style of Springer-Verlag

% designed by Dr. Christoph Ender

%

% define the new theorem like environments

% define a new style of environments where it is possible to define

% the font % used as the theorem name and the fontfamily for the text.

%

% \newstytheorem{name}{thefont}{txtfont}{Text}[Counter]

% \newstytheorem{name}{thefont}{txtfont}[oldname]{Text}

%

% #1 - name of theorem

% #2 - theorem font

% #3 - text font

%

\def\newstytheorem#1#2#3{%

\@ifnextchar[{\che@othm{#1}{#2}{#3}}{\che@nthm{#1}{#2}{#3}}}

%

% #1 - name of theorem

% #2 - theorem font

% #3 - text font

% #4 - text string of thorem name

%

\def\che@nthm#1#2#3#4{%

\@ifnextchar[{\che@xnthm{#1}{#2}{#3}{#4}}{\che@ynthm{#1}{#2}{#3}{#4}}}

%

% #1 - name of theorem

% #2 - theorem font

% #3 - text font

% #4 - text string of thorem name

% #5 - add theorem counter to reset list of another counter

%

\def\che@xnthm#1#2#3#4[#5]{\expandafter

\@ifdefinable\csname #1\endcsname

{\@definecounter{#1}\if@envcountreset\@addtoreset{#1}{#5}\fi

\expandafter\xdef\csname the#1\endcsname{\@thmcounter{#1}}%

\global\@namedef{#1}{\che@thm{#1}{#4}{#2}{#3}}\global

\@namedef{end#1}{\@endtheorem}}}

%

% #1 - name of theorem

% #2 - theorem font

% #3 - text font

% #4 - text string of thorem name

%

\def\che@ynthm#1#2#3#4{\expandafter\@ifdefinable\csname #1\endcsname

{\@definecounter{#1}%

\expandafter\xdef\csname the#1\endcsname{\@thmcounter{#1}}%

\global\@namedef{#1}{\che@thm{#1}{#2}{#3}{#4}}\global

\@namedef{end#1}{\@endtheorem}}}

%

% change oldthm if oldname in specification is '*'

% then don't use a counter

% #1 - countername

% #2 - theorem font

% #3 - text font

% #4 - counter used

% #5 - string containing theorem name to print

%

\def\che@othm#1#2#3[#4]#5{\expandafter\@ifdefinable

\csname#1\endcsname%

{\@@othm@{#1}{#2}{#3}{#4}{#5}\global\@namedef{end#1}{\@endtheorem}}}

%

\def\@@othm@#1#2#3#4#5{\if *#4{\global\@namedef{the#1}{\relax}

\global\@namedef{#1}{\@bthm@{}{#5}{#2}{#3}}}\else

{\global\@namedef{the#1}{\@nameuse{the#4}}% define the counter

\global\@namedef{#1}{\che@thm{#4}{#5}{#2}{#3}}}\fi}

%

% new defs for theorem environment che 17-MAR-1989

% it improves the option possible

%

% #1 - countername  = theorem name

% #2 - string containing theorem name to print

% #3 - theorem font

% #4 - text font

\def\che@thm#1#2#3#4{\@ifnextchar({\@athm{#1}{#2}{#3}{#4}}{%

\@ifnextchar *{\@bthm{#1}{#2}{#3}{#4}}%

{\@@thm{#1}{#2}{#3}{#4}}}}

%

% \begin{thm}(A.1)[test]      results in:

% \end{thm}                               thm A.1 (test) ....

% #1 - theorem

% #2 - string of theorem name

% #3 - font for theorem name and label

% #4 - Text font

% #5 - is the new label

% #6 - optional string

%

\def\@athm#1#2#3#4(#5){\@ifnextchar[{%

\@aythm{#1}{#2}{#3}{#4}{#5}}{\@axthm{#1}{#2}{#3}{#4}{#5}}}

\def\@axthm#1#2#3#4#5{\@@locthmlab{#1}{#5}%

\@begintheorem{#2}{#5}{#3}{#4}\ignorespaces}

\def\@aythm#1#2#3#4#5[#6]{\@@locthmlab{#1}{#5}%

\fuh@opargbegintheorem{#2}{#5}{#6}{#3}{#4}\ignorespaces}

%

% \begin{thm}*[xytest]        results in:

% \end{thm}                               thm (xytest) ....

% #1 - theorem

% #2 - string of theorem name

% #3 - font for theorem name and label

% #4 - Text font

% #5 - optional string

%

\def\@bthm@#1#2#3#4{\@ifnextchar[{\@bythm{#1}{#2}{#3}{#4}}{%

\@bxthm{#1}{#2}{#3}{#4}}}

\def\@bthm#1#2#3#4*{\@ifnextchar[{\@bythm{#1}{#2}{#3}{#4}}{%

\@bxthm{#1}{#2}{#3}{#4}}}

\def\@bxthm#1#2#3#4{\if !#1!\relax\else\@@locthmlab{#1}{}\fi

\@@begintheorem{#2}{#3}{#4}\ignorespaces}

\def\@bythm#1#2#3#4[#5]{\@@opargbegintheorem{#2}{#3}{#4}{#5}\ignorespaces}

%

% define local label

%   if no number or a user specified label occured

%

\def\@@locthmlab#1#2{\expandafter\def\csname the#1\endcsname{#2}\let\@chetempa\protect\def\protect{\noexpand\protect\noexpand}\edef\@currentlabel{\csname p@#1\endcsname\csname the#1\endcsname}\let\protect\@chetempa}

%

% #1 - counter = theorem name

% #2 - string with name

% #3 - font for theorem name and label

% #4 - font for text

\def\@@thm#1#2#3#4{\refstepcounter{#1}\@ifnextchar[{\che@ythm{#1}{#2}{#3}{#4}}{\che@xthm{#1}{#2}{#3}{#4}}}

%

\def\che@xthm#1#2#3#4{\che@begintheorem{#2}{\csnamethe#1\endcsname}{#3}{#4}\ignorespaces}

\def\che@ythm#1#2#3#4[#5]{\che@opargbegintheorem{#2}{\csname

       the#1\endcsname}{#5}{#3}{#4}\ignorespaces}

%

% #1 - name of theorem

% #2 - label string

% #3 - font for name and lable

% #4 - text fomt

%

\def\che@begintheorem#1#2#3#4{#4\trivlist\item[\hskip\labelsep#3#1\ts #2.]}

%

% #1 - name of theorem

% #2 - label string

% #3 - additonal text

% #4 - font for name and lable

% #5 - text fomt

%

\def\che@opargbegintheorem#1#2#3#4#5{#5\trivlist\item[\hskip\labelsep#4#1\ts #2\ #3.]}

%

\def\fuh@opargbegintheorem#1#2#3{\it \trivlist \item[\hskip \labelsep{\bf #1\ #2\ (#3).}]}

%

\def\@@begintheorem#1#2#3{#3\trivlist\item[\hskip\labelsep #2#1.]}

\def\@@opargbegintheorem#1#2#3#4{#3\trivlist\item[\hskip\labelsep #2#1 #4.]}

%\newstytheorem{theorem}{\bf}{\it}{Theorem}[section]

%\newstytheorem{example}{\it}{\rm}{Example}[section]

%\newstytheorem{proposition}{\bf}{\it}[theorem]{Proposition}

%\newstytheorem{corollary}{\bf}{\it}[theorem]{Corollary}

%\newstytheorem{lemma}{\bf}{\it}[theorem]{Lemma}

%\newstytheorem{proof}{\it}{\rm}[*]{Proof}

%\newstytheorem{definition}{\bf}{\rm}[theorem]{Definition}

%\newstytheorem{remark}{\it}{\rm}[*]{Remark}

%\newstytheorem{exercise}{\it}{\rm}[theorem]{Exercise}

%\newstytheorem{problem}{\it}{\rm}[theorem]{Problem}

%\newstytheorem{solution}{\it}{\rm}[theorem]{Solution}

%\newstytheorem{note}{\it}{\rm}[theorem]{Note}

%\newstytheorem{question}{\it}{\rm}[theorem]{Question}

\def\squareforqed{\hbox{\rlap{$\sqcap$}$\sqcup$}}

\def\qed{\ifmmode\squareforqed\else{\unskip\nobreak\hfil\penalty50\hskip1em\null\nobreak\hfil\squareforqed\parfillskip=0pt\finalhyphendemerits=0\endgraf}\fi}



\def\getsto{\mathrel{\mathchoice {\vcenter{\offinterlineskip\halign{\hfil$\displaystyle##$\hfil\cr\gets\cr\to\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr\gets\cr\to\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr\gets\cr\to\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr\gets\cr\to\cr}}}}}

\def\lid{\mathrel{\mathchoice {\vcenter{\offinterlineskip\halign{\hfil$\displaystyle##$\hfil\cr<\cr\noalign{\vskip1.2pt}=\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr<\cr\noalign{\vskip1.2pt}=\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr<\cr\noalign{\vskip1pt}=\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr<\cr\noalign{\vskip0.9pt}=\cr}}}}}

\def\gid{\mathrel{\mathchoice {\vcenter{\offinterlineskip\halign{\hfil$\displaystyle##$\hfil\cr>\cr\noalign{\vskip1.2pt}=\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr>\cr\noalign{\vskip1.2pt}=\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr>\cr\noalign{\vskip1pt}=\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr>\cr\noalign{\vskip0.9pt}=\cr}}}}}

\def\grole{\mathrel{\mathchoice {\vcenter{\offinterlineskip\halign{\hfil$\displaystyle##$\hfil\cr>\cr\noalign{\vskip-1pt}<\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\textstyle##$\hfil\cr>\cr\noalign{\vskip-1pt}<\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptstyle##$\hfil\cr>\cr\noalign{\vskip-0.8pt}<\cr}}}{\vcenter{\offinterlineskip\halign{\hfil$\scriptscriptstyle##$\hfil\cr>\cr\noalign{\vskip-0.3pt}<\cr}}}}}

\def\bbbr{{\rm I\!R}} %reelle Zahlen

\def\bbbm{{\rm I\!M}}

\def\bbbn{{\rm I\!N}} %natuerliche Zahlen

\def\bbbf{{\rm I\!F}}

\def\bbbh{{\rm I\!H}}

\def\bbbk{{\rm I\!K}}

\def\bbbp{{\rm I\!P}}

\def\bbbone{{\mathchoice {\rm 1\mskip-4mu l} {\rm 1\mskip-4mu l}{\rm 1\mskip-4.5mu l} {\rm 1\mskip-5mu l}}}

\def\bbbc{{\mathchoice {\setbox0=\hbox{$\displaystyle\rm C$}\hbox{\hboxto0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}}{\setbox0=\hbox{$\textstyle\rm C$}\hbox{\hboxto0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptstyle\rm C$}\hbox{\hboxto0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptscriptstyle\rm C$}\hbox{\hboxto0pt{\kern0.4\wd0\vrule height0.9\ht0\hss}\box0}}}}

\def\bbbq{{\mathchoice {\setbox0=\hbox{$\displaystyle\rmQ$}\hbox{\raise0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.8\ht0\hss}\box0}}{\setbox0=\hbox{$\textstyle\rm Q$}\hbox{\raise0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.8\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptstyle\rm Q$}\hbox{\raise0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.7\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptscriptstyle\rm Q$}\hbox{\raise0.15\ht0\hbox to0pt{\kern0.4\wd0\vrule height0.7\ht0\hss}\box0}}}}

\def\bbbt{{\mathchoice {\setbox0=\hbox{$\displaystyle\rmT$}\hbox{\hbox to0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}}{\setbox0=\hbox{$\textstyle\rm T$}\hbox{\hboxto0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptstyle\rm T$}\hbox{\hboxto0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptscriptstyle\rm T$}\hbox{\hboxto0pt{\kern0.3\wd0\vrule height0.9\ht0\hss}\box0}}}}

\def\bbbs{{\mathchoice{\setbox0=\hbox{$\displaystyle     \rm S$}\hbox{\raise0.5\ht0\hboxto0pt{\kern0.35\wd0\vrule height0.45\ht0\hss}\hboxto0pt{\kern0.55\wd0\vrule height0.5\ht0\hss}\box0}}{\setbox0=\hbox{$\textstyle        \rm S$}\hbox{\raise0.5\ht0\hboxto0pt{\kern0.35\wd0\vrule height0.45\ht0\hss}\hboxto0pt{\kern0.55\wd0\vrule height0.5\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptstyle      \rm S$}\hbox{\raise0.5\ht0\hboxto0pt{\kern0.35\wd0\vrule height0.45\ht0\hss}\raise0.05\ht0\hboxto0pt{\kern0.5\wd0\vrule height0.45\ht0\hss}\box0}}{\setbox0=\hbox{$\scriptscriptstyle\rm S$}\hbox{\raise0.5\ht0\hboxto0pt{\kern0.4\wd0\vrule height0.45\ht0\hss}\raise0.05\ht0\hboxto0pt{\kern0.55\wd0\vrule height0.45\ht0\hss}\box0}}}}

\def\bbbz{{\mathchoice {\hbox{$\sf\textstyle Z\kern-0.4em Z$}}{\hbox{$\sf\textstyle Z\kern-0.4em Z$}}{\hbox{$\sf\scriptstyle Z\kern-0.3em Z$}}{\hbox{$\sf\scriptscriptstyle Z\kern-0.2em Z$}}}}

\def\ts{\thinspace}



\def\typeset{\vfill\small\noindent This article was processed using

the \TeX\ macro package with SIRS2001 style\par}



\def\enddocument{\par\typeset\@checkend{document}\clearpage\begingroup\if@filesw \immediate\closeout\@mainaux\def\global\@namedef##1##2{}\def\newlabel{\@testdef r}%

\def\bibcite{\@testdef b}\@tempswafalse\makeatletter\input \jobname.aux\if@tempswa \@warning{Label(s) may have changed. Rerun to getcross-references right}\fi\fi\endgroup\deadcycles\z@\@@end}