% version of May 13, 2003.
% 
% Copyright ICTP 2002
% Designed by Paul A. Blaga at "T. Popoviciu" Institute of Numerical Analysis (ICTP)
% for "Revue d'Analyse Numerique et de Theorie de l'Approximation" (ANTA).
% www.ictp.acad.ro/anta
%     contacts:  Paul A. Blaga (pablaga@math.ubbcluj.ro, pablaga@cs.ubbcluj.ro)
%                Emil Catinas  (ecatinas@ictp.acad.ro)
%----------------------------------------------------------------------------------
% this file may be freely used by the other journals of the Romanian Academy:
% 
%  Mathematica (Cluj)
%               (for specific instructions see http://math.ubbcluj.ro/~mathjour/)
%               contact:  Andrei Marcus (mathjour@math.ubbcluj.ro)  
%
%  Revue Roumaine de Mathematiques Pures et Appliquees
%               (www.ear.ro)
%
%  Mathematical Reports
%               (www.ear.ro)
%        
%  as well as the other journals of the Romanian Academy.
%  
%
\NeedsTeXFormat{LaTeX2e}
%
\ProvidesPackage{mathcluj}[2002/06/20]
%
\RequirePackage{fancyhdr}
%
\RequirePackage{calc}
%
\RequirePackage{geometry}
%
\RequirePackage[centerlast,footnotesize]{caption2}
%
%%%
%FONTS
%%%
\font\colontitle=cmr9
%
\font\sectionfont=cmb10 at 9pt
%%%
\renewcommand{\captionlabeldelim}{~--~}
%
%\renewcommand{\thetable}{\thesection.\arabic{table}}
%
\renewcommand{\thefigure}{\thesection.\arabic{figure}}
%
%\baselineskip=12pt plus 4pt minus 4pt
%\addtolength{\lineskiplimit}{3pt}
%
%\addtolength{\lineskip}{5pt}
%
\setlength{\abovecaptionskip}{6pt}
%
\setlength{\belowcaptionskip}{8pt}
%
\floatsep=8pt \textfloatsep=8pt \intextsep=8pt
%
\geometry{paper=a4paper,left=4truecm,bottom=5.2truecm,right=4truecm,top=4.5truecm,
headheight=13truept,nofoot}
%
\pagestyle{fancyplain}
\newcounter{firstpg}
\setcounter{firstpg}{207} \setcounter{page}{\thefirstpg}
\newcounter{offpage}[firstpg]
\newcommand{\printoffpage}{\setcounter{offpage}{\count0-\thefirstpg+1}\theoffpage} \fancyhead{} \fancyfoot{}
\chead[\colontitle \nouppercase\leftmark]{\colontitle \nouppercase\rightmark}
%
\fancyhead[LE,RO]{\colontitle\thepage}
%
\fancyhead[LO,RE]{\colontitle\printoffpage}
%%
%\DeclareOption{indenting}{\let\thm@indent\indent} \ProcessOptions
%%
\newlength{\abstractskip}
\setlength{\abstractskip}{5pt}
\newlength{\abstractmargin}
\setlength{\abstractmargin}{24pt}
\newlength{\otherskip}
\setlength{\otherskip}{24pt}
% from amsart
%@Maketitle
\def\@maketitle@hook{\global\let\@maketitle@hook\@empty}
\def\@maketitle{%
  \normalfont\normalsize
  \let\@makefnmark\relax
  \let\@thefnmark\relax
  \ifx\@empty\@date\else \AtEndDocument{\@setdate}\fi
    \ifx\@empty\thankses\else \@footnotemark\@footnotetext{%
    \def\par{\let\par\@par}\@setthanks}\fi
  \@mkboth{\@nx\shortauthors}{\@nx\shorttitle}%
  \ifvoid\abstractbox\global\topskip43truept plus 0pt minus 0pt \relax
  \else\global\topskip28truept plus 0pt minus 0pt \relax \fi % 5.5pc   "   "   "     "     "         % 32 in loc de 42 !!
  \@settitle
  \ifx\@empty\authors \else \@setauthors \fi
  \ifx\@empty\@dedicatory
  \else
    \baselineskip18\p@
    \vtop{\centering{\footnotesize\itshape\@dedicatory\@@par}%
      \global\dimen@i\prevdepth}\prevdepth\dimen@i
  \fi
  \@setabstract
  \@setamssubject
  \@setkeyword
  \ifx\@empty\@subjclass\else  \skip@20\p@ \advance\skip@-\lastskip
    \advance\skip@-\baselineskip \vskip\skip@{\hskip\parskip\footnotesize\@setsubjclass\par}\fi
  \ifx\@empty\@keywords\else {\footnotesize\@setkeywords}\fi
  \normalsize
  \if@titlepage
    \newpage
  \else
    \dimen@34\p@ \advance\dimen@-\baselineskip
    \vskip\dimen@\relax
  \fi
} % end \@maketitle
%abstract
\renewenvironment{abstract}{%
  \ifx\maketitle\relax
    \ClassWarning{\@classname}{Abstract should precede
      \protect\maketitle\space in AMS documentclasses; reported}%
  \fi
   \global\setbox\abstractbox=\vtop \bgroup
    \normalfont\Small
    \list{}{\labelwidth\z@
      \leftmargin\abstractmargin \rightmargin\leftmargin
      \listparindent\normalparindent \itemindent\z@
      \parsep\z@ \@plus\p@
      \let\fullwidthdisplay\relax
    }%
     \@topsep30truept\relax
    \advance \@topsep by -\baselineskip
\item[\hskip\abstractskip\bfseries\abstractname.]%
}{%
  \endlist\egroup
  \ifx\@setabstract\relax \@setabstracta \fi
}
\def\@setabstract{\@setabstracta \global\let\@setabstract\relax}
\def\@setabstracta{%
  \ifvoid\abstractbox
  \else
    \skip@20\p@ \advance\skip@-\lastskip
    \advance\skip@-\baselineskip \vskip\skip@
    \box\abstractbox
    \prevdepth\z@ % because \abstractbox is a vtop
  \fi
}
%subject class
\renewcommand{\subjclassname}{%
\bfseries MSC 2010} \@xp\let\csname subjclassname@1991\endcsname \subjclassname
\@namedef{subjclassname@2010}{%
 \bfseries \textup{2010} AMS subject classification}
%
%keywords
\renewcommand{\keywordsname}{Key words}
    %
%SECTION

\def\@startsection#1#2#3#4#5#6{%
 \if@noskipsec \leavevmode \fi
 \par \@tempskipa #4\relax
 \@afterindenttrue
 \ifdim \@tempskipa <\z@ \@tempskipa -\@tempskipa \@afterindentfalse\fi
 \if@nobreak \everypar{}\else
     \addpenalty\@secpenalty\addvspace\@tempskipa\fi
 \@ifstar{\@dblarg{\@sect{#1}{\@m}{#3}{#4}{#5}{#6}}}%
         {\@dblarg{\@sect{#1}{#2}{#3}{#4}{#5}{#6}}}%
}
\def\@seccntformat#1{%
  \protect\textup{\protect\@secnumfont
    \csname the#1\endcsname
    \protect\@secnumpunct
  }%
}
\def\@secnumfont{\sectionfont}
\def\@sect#1#2#3#4#5#6[#7]#8{%
  \edef\@toclevel{\ifnum#2=\@m 0\else\number#2\fi}%
  \ifnum #2>\c@secnumdepth \let\@secnumber\@empty
  \else \@xp\let\@xp\@secnumber\csname the#1\endcsname\fi
  \@tempskipa #5\relax
  \ifnum #2>\c@secnumdepth
    \let\@svsec\@empty
  \else
    \refstepcounter{#1}%
    \edef\@secnumpunct{%
      \ifdim\@tempskipa>\z@ % not a run-in section heading
        \@ifnotempty{#8}{.\@nx\enspace}%
      \else .\@nx\enspace
      \fi
    }%
    \protected@edef\@svsec{%
      \ifnum#2<\@m
        \@ifundefined{#1name}{}{%
          \ignorespaces\csname #1name\endcsname\space
        }%
      \fi
      \@seccntformat{#1}%
    }%
  \fi
  \ifdim \@tempskipa>\z@ % then this is not a run-in section heading
    \begingroup #6\relax
    \@hangfrom{\hskip #3\relax\@svsec}%
    {\interlinepenalty\@M \sectionfont \MakeUppercase{#8}\par}%
    \endgroup
    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
  \else
  \def\@svsechd{#6\hskip #3\@svsec
    \@ifnotempty{#8}{\ignorespaces#8\unskip
       \@addpunct.}%
    \ifnum#2>\@m \else \@tocwrite{#1}{#8}\fi
  }%
  \fi
  \global\@nobreaktrue
  \@xsect{#5}}
\let\@ssect\relax
%
\def\publname{\centering\textbf{MATHEMATICA,\ }}

%
%footnoterule
\def\footnoterule{\kern-.4\p@
        \hrule\@width 2.5cm \kern11\p@\kern-\footnotesep}
%%
%ADDRESSES
\def\@setaddresses{\par
  \nobreak \begingroup
\footnotesize
  \def\author##1{\nobreak\addvspace\bigskipamount}%
  \def\\{\unskip, \ignorespaces}%
  \interlinepenalty\@M \par
  \def\address##1##2{\begingroup
    \par\addvspace\bigskipamount\indent
    \@ifnotempty{##1}{(\ignorespaces##1\unskip) }%
    {\scshape\ignorespaces##2}\par\endgroup}%
  \def\curraddr##1##2{\begingroup
    \@ifnotempty{##2}{\nobreak\indent{\itshape Current address}%
      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
      ##2\par}\endgroup}%
  \def\email##1##2{\begingroup
    \@ifnotempty{##2}{\nobreak\indent{\itshape E-mail address}%
      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
      \ttfamily##2\par}\endgroup}%
  \def\urladdr##1##2{\begingroup
    \@ifnotempty{##2}{\nobreak\indent{\itshape URL}%
      \@ifnotempty{##1}{, \ignorespaces##1\unskip}\/:\space
      \ttfamily##2\par}\endgroup}%
  \addresses
  \endgroup
}
%%SETs
\def\@setkeywords{%
  {\hskip\otherskip\bfseries \keywordsname:}\enspace \@keywords\@addpunct.\vskip-20truept}
\renewcommand{\@setsubjclass}{%
  {\hskip\otherskip\bfseries\subjclassname:}\enspace\@subjclass\@addpunct.}
\def\@setcopyright{}
%%
%MAKETITLE
\def\maketitle{\par
  \@topnum\z@ % this prevents figures from falling at the top of page 1
  \@setcopyright
  \thispagestyle{myfirstpage}% this sets first page specifications
%  \MakeUppercase\shorttitle
  \ifx\@empty\shortauthors \let\shortauthors\shorttitle
  \else \andify\shortauthors
  \fi
  \@maketitle@hook
  \begingroup
  \@maketitle
  \toks@\@xp{\shortauthors}\@temptokena\@xp{\shorttitle}%
  \toks4{\def\\{ \ignorespaces}}% defend against questionable usage
  \edef\@tempa{%
    \@nx\markboth{\the\toks4
      \@nx\MakeUppercase{\the\toks@}}{\the\@temptokena}}%
  \@tempa
  \endgroup
  \c@footnote\z@
  \def\do##1{\let##1\relax}%
  \do\maketitle \do\@maketitle \do\title \do\@xtitle \do\@title
  \do\author \do\@xauthor \do\address \do\@xaddress
  \do\email \do\@xemail \do\curraddr \do\@xcurraddr
  \do\commby \do\@commby
  \do\dedicatory \do\@dedicatory \do\thanks \do\thankses
  \do\keywords \do\@keywords \do\subjclass \do\@subjclass
  \do\adresa\do\@adresa
}
%%
\renewcommand{\datename}{Received \ }
%
\long\def\set@logo#1{%
  \vbox to\headheight{%
    \@parboxrestore \fontsize{8}{9\p@}\selectfont
    \noindent#1\par\vss
  }%
}
%%
\def\@settitle{\begin{center}%
  \baselineskip14\p@\relax
    \upshape
\uppercasenonmath\@title
  \@title
  \end{center}%
}
%%
    \def\volinfo{%
      \bfseries \currentvolume, N$^{\rm o}$ \currentissue,
       \currentyear
    }%
%%
\def\article@logo{%
  \set@logo{%
    \publname
    \ifx\@empty\currentvolume
    \else \centering\volinfo, \pageinfo
    \fi
  }%
}
%%
    \def\pageinfo{%
      \ifnum\start@page=\z@
        pp. 000--000
      \else
        \ifx\start@page\end@page
          p. \start@page
        \else
          pp. \start@page--\end@page
        \fi
      \fi}%
\itemsep=.5em
%%%
\def\th@remark{%
\let\thm@indent\indent
  \thm@headfont{\scshape}%
  \normalfont % body font
\thm@preskip=.5\baselineskip\@plus.2\baselineskip
                             \@minus.2\baselineskip
  \thm@postskip=\thm@preskip
}
\def\th@definition{%
\let\thm@indent\indent
  \thm@headfont{\scshape}%
  \normalfont % body font
\thm@preskip=.5\baselineskip\@plus.2\baselineskip
                             \@minus.2\baselineskip
  \thm@postskip=\thm@preskip
}
\def\th@plain{%
\let\thm@indent\indent
  \thm@headfont{\scshape}%
  \itshape % body font
\thm@preskip=.5\baselineskip\@plus.2\baselineskip
                             \@minus.2\baselineskip
  \thm@postskip=\thm@preskip
}
%
\renewcommand{\andify}{%
  \nxandlist{\unskip, }{\unskip{} \lowercase{and}~}{\unskip, \lowercase{and}~}}
\def\and{\unskip{ }\lowercase{and} \ignorespaces}
%%
%%QEDS
\newcommand{\displayqed}{\displaymath@qed}
\newcommand{\eqqed}{\equation@qed}
\newcommand{\alignqed}{\align@qed}
\newcommand{\splitqed}{\split@qed}
%%proof*
\let\@newpf\proof \let\proof\relax \let\endproof\relax
\newenvironment{proof*} {\@newpf[\hskip\parindent\proofname]}{\endtrivlist}
\newenvironment{proof}[1][\hskip\parindent\proofname]{\par
  \pushQED{\qed}%
  \normalfont \topsep6\p@\@plus6\p@\relax
  \trivlist
  \item[\hskip\labelsep
        \itshape
    #1\@addpunct{.}]\ignorespaces
}{%
  \popQED\endtrivlist\@endpefalse
}
%% keywords, subjclass
\newbox\keywordbox
\newenvironment{keyword}{%
  \ifx\maketitle\relax
    \ClassWarning{\@classname}{Keywords should precede
      \protect\maketitle\space in AMS documentclasses; reported}%
  \fi
  \global\setbox\keywordbox=\vtop \bgroup
    \normalfont\Small
    \list{}{\labelwidth\z@
      \leftmargin\abstractmargin \rightmargin\leftmargin
      \listparindent\normalparindent \itemindent\z@
      \parsep\z@ \@plus\p@
      \let\fullwidthdisplay\relax
    }%
    \item[\hskip\abstractskip\bfseries\keywordsname.]%
}{%
  \endlist\egroup
  \ifx\@setkeyword\relax \@setkeyworda \fi
}
\def\@setkeyword{\@setkeyworda \global\let\@setkeyword\relax}
\def\@setkeyworda{%
  \ifvoid\keywordbox
  \else
    \skip@10\p@ \advance\skip@-\lastskip
    \advance\skip@-1.7\baselineskip \vskip\skip@
    \box\keywordbox
    \prevdepth\z@ % because \keywordbox is a vtop
\vskip-24truept
  \fi
}
%%
%% keywords, subjclass
\newbox\amssubjectbox
\newenvironment{amssubject}{%
  \ifx\maketitle\relax
    \ClassWarning{\@classname}{Keywords should precede
      \protect\maketitle\space in AMS documentclasses; reported}%
  \fi
  \global\setbox\amssubjectbox=\vtop \bgroup
    \normalfont\Small
    \list{}{\labelwidth\z@
      \leftmargin\abstractmargin \rightmargin\leftmargin
      \listparindent\normalparindent \itemindent\z@
      \parsep\z@ \@plus\p@
      \let\fullwidthdisplay\relax
    }%
    \item[\hskip\abstractskip\bfseries\subjclassname.]%
}{%
  \endlist\egroup
  \ifx\@setamssubject\relax \@setamssubjecta \fi
}
\def\@setamssubject{\@setamssubjecta \global\let\@setamssubject\relax}
\def\@setamssubjecta{%
  \ifvoid\amssubjectbox
  \else
    \skip@10\p@ \advance\skip@-\lastskip
    \advance\skip@-1.65\baselineskip \vskip\skip@
    \box\amssubjectbox
    \prevdepth\z@ % because \amssubjectbox is a vtop
  \fi
}
%%myfirstpage
\def\ps@myfirstpage{\ps@plain
  \def\@oddfoot{\normalfont\scriptsize \hfil\hfil
     \global\topskip\normaltopskip}%
  \let\@evenfoot\@oddfoot
  \def\@oddhead{\@serieslogo\hss}%
  \let\@evenhead\@oddhead % in case an article starts on a left-hand page
}
\def\fnum@figure{\figurename.~\thefigure}
\def\figurename{Fig}
\def\fnum@table{{\itshape\tablename~\thetable}}
\def\figurename{Fig}
%\renewcommand{\thetable}{\thesection.\arabic{table}}
%date
\def\@setdate{\vskip6truept\colontitle\datename\ \@date\@addpunct.}
%section
%%%skip dupa autori
\def\@setauthors{%
  \begingroup
  \trivlist
  \centering\footnotesize \@topsep30\p@\relax
  \advance\@topsep by -\baselineskip
  \item\relax
  \andify\authors
  \def\\{\protect\linebreak}%
%\MakeUppercase{\authors}%
{\authors}%
  \endtrivlist
  \endgroup
 \ifvoid\abstractbox\vskip0pt plus 0pt minus 0pt\fi
}