% Example for articles published in the Journal of Operator Theory
% using jotart.cls style file
\documentclass[draft]{jotart}
% The option "draft" should be changed into "final" only after all the
% overfullrules become strictly less than 4pt
\usepackage{amsmath}
\usepackage{amssymb}
% Other package compatible with AMS-LaTeX can be used,
% however, some of the packages may conflict with the JOT style,
% use of the package psfrag is completely forbidden
% Theorems and the like
% Theorems, lemmas, corollaries, proposition, etc.
\theoremstyle{proclaim}
\newtheorem{theorem}{Theorem}[section]
\newtheorem{lemma}[theorem]{Lemma}
\newtheorem{corollary}[theorem]{Corollary}
\newtheorem{proposition}[theorem]{Proposition}
% Fancy theorems (no numbers)
\theoremstyle{fancyproclaim}
\newtheorem*{vartheorem}{ }
% Non-italicized text for definitions, remarks, examples, etc.
\theoremstyle{statement}
\newtheorem{remark}[theorem]{Remark}
\newtheorem{definition}[theorem]{Definition}
\newtheorem{example}[theorem]{Example}
% Fancy remarks (no numbers)
\theoremstyle{fancystatement}
\newtheorem*{varremark}{ }
% Equations
\numberwithin{equation}{section}
\renewcommand{\theenumi}{\roman{enumi}}
% Authors macros; the followin is only an example
\providecommand{\AMS}{$\mathcal{A}$\kern-.1667em%
\lower.25em\hbox{$\mathcal{M}$}\kern-.125em$\mathcal{S}$}
% Use of macros should confine the general rules for AMS-LaTeX. It is
% recommended to use \newcommand and \renewcommand instead of the TeX 
% primitive \def
% Topmatter
\begin{document}% Do not forget this command!
\issueinfo{vv}{n}{yyyy} 
% \issueinfo{vv}{n}{yyyy}, vv is the volume, n is the number, yyyy is the year
% leave these information to fixed later by the editorial office
\commby{Editor}% Editor is the name of the editor who accepted the article
\pagespan{101}{103}
% \pagespan{bbb}{eee} where bbb is the beginning page, eee is the ending page
\date{Month dd, yyyy}% This is the date of submission of the article; it
% will be fixed by the editorial office
\revision{Month dd, yyyy}% This is date(s) of revision of the manuscript; it
% will be fixed by the editorial office
\title[Short title]{Long title of the article}% The title of the article
\dedicatory{Dedicated to ...}% Only if needed
\author[Author1, Author2, {\protect \and} Author3]{Author1, Author2, {\protect
\and} Author3}% For multiple authors please use {\protec \and} sequence
\address{AUTHOR1, Department, University, Town, Zip, Country}
\email{author1@math.edu.country}
\address{AUTHOR2, Department, University, Town, Zip, Country}
\email{author2@math.edu.country}
\address{AUTHOR3, Department, University, Town, Zip, Country}
\begin{abstract} An abstract of at most 100 words should be
  included. 
The abstract should summerise the results of the paper and nothing more.
The main purpose of
the abstract is to enable the readers to take in the nature and results of
the papers quickly and to decide whether they are willing to read the
entire paper or not. The abstract should be about 8 rows or 100 words. 
Citation of bibliography within the abstract should be
avoided. Please do not use custom macros inside the abstract; the
abstract is supposed to have a life independent of the article.
\end{abstract}
\begin{subjclass}
code1, code2, ..., codeN. % or "Primary code0, Secondary code1, ...,coden."
\end{subjclass}
\begin{keywords}
Keyword1, keyword2, ..., keyword10.
\end{keywords}
\maketitle

\section*{INTRODUCTION}

This is the introduction. It has the role of presenting briefly the problem,
its history and a short description of the article and the main results.

When typesetting your article for the Journal of Operator Theory, please
keep in mind the following rules:\smallskip


 \nr{1}   The title should be informative. For a longer title a running short
 title should be indicated. Mathematical symbols in the title should be
 avoided as much as possible.
  
\nr{2}  Authors' names are listed in alphabetical order and formatted as
 follows: First (Given) Name, Middle Initial(s), Last (Family) Name.
    
\nr{3} An abstract of at most 8 rows should be included. The abstract should
 summerise the results of the paper and nothing more. The main purpose of
 the abstract is to enable the readers to take in the nature and results of
 the papers quickly and to decide whether they are willing to read the
 entire paper or not. Citation of bibliography within the abstract should be
 avoided. Avoid as much as possible using display equations within the
 abstract, or, if really necessary, do not label these dispalyed equations
 for further cross-referencing in the article. Keep in mind that the
 abstract and the article should be kept independent one to each other.
    
\nr{4} A list of at most ten keywords should be provided. It has the role of
 indicating the important topics considered.
    
\nr{5} The Mathematics Subject Classifications (2000) categories should be
 included. Their role is to identify accurately the fields of the article.
 If necessary, one may distinguish between primary and secondary
 classification codes.
    
\nr{6} The first section is usually an introduction. It has the role of
 presenting the general framework of the paper, historical notes, relevance
 of the investigation and an outline of the main results. Repetition should
 be kept to a minimum.
    
\nr{7} The body of the article should be usually divided in sections. sections
 can be divided in subsections, but it is preferable that this should be
 kept to a minimum. Further division of subsections in sub-subsections
 should be avoided. Keep in mind that an article is not a book and that it
 should be simple and clear as much as possible.
    
\nr{8} The results should be distinguished correspondingly as theorems,
 propositions, lemmas and corollaries. Remarks, definitions, and examples
 can be used.
    
\nr{9} Footnotes are forbidden.

\nr{10} It is strongly required that all the items should be numbered  within
 sections: the first figure is the section number, the latter designates the
 number of the item within the same section.
    
\nr{11} The beginning and the end of the proofs should be clearly emphasized. If
 necessary, proofs can be divided in steps. Nested proofs should be avoided
 as much as possible.
    
\nr{12} Acknowledgements for grants should be placed before the references.
    
\n{13} Items listed as references should be relevant to the subject of the
 paper. The list of references must be in alphabetical-chronological order.
 Abbreviations of names of journals and references should follow the
 standard form established by the Mathematical Reviews.
    
\nr{14} The authors and their addresses, including the e-mail addresses, if
 available, should be placed at the end of the manuscript. Authors will be
 always listed in alphabetical order, unless specifically required (not
 recommended).


\section{PREMIMINARIES}

If necessary, a section dedicated to notation and recall of the main
facts that are used can be included. You should keep repetitions to a minimum.

\section{MAIN SECTION}

In this section we give some examples of use of macros and environments. There
are two types of environments for results and the like. The first one is a
``proclaim'' type, used for theorems, corollaries, lemmas, propositions.

\begin{theorem}\label{mytheorem}
 This is an example of a theorem. It contains a statement
  in italics, equations, formulas and possibly some itemed statements like
  these: 

\nr{i} this is the first item;

\nr{ii} and this is the  second.
\end{theorem}

You can use an option for associating citations or names with a theorem:

\begin{theorem}[My Friends' Greatest Result, \cite{mft}]
\label{myfriendstheorem} 
This is another theorem. It
  contains three items that are more or less independent.

\nr{i} This is the first item.

\nr{ii} This is the second item.

\nr{iii} This is the third item.
\end{theorem}

\begin{proof} This is an example of a proof where you should always use the
  environment \textit{proof} as we do.
\end{proof}

A proof may be provided with a special name.

\begin{proof}[Proof of Theorem~\ref{mytheorem}] In this proof  we emphasize a
  situation when the last row is a displayed equation. In this case, you
  should use a special command $\backslash$\texttt{qedhere} 
to fix the black rectangle, like in the folloing:
\begin{equation}\label{nice}
B(t)=b(s).\qedhere
\end{equation}
\end{proof}

Fancy theorems, for which there is no automatic numbering and the tag is put
manually are available, as in the following example. However, please keep in
mind the usage of it should be exceptional, not the rule.

\begin{vartheorem}[Theorem A] This theorem is classical.
\end{vartheorem}

A second type of environment that we call \textit{statement} is for
definitions, remarks, and examples.

\begin{definition}\label{mydefinition} This is an example of a definition. The
  defined \emph{term} should be emphasized.
\end{definition}

Another example of this type is a remark.

\begin{remark}\label{myremark} This is an example of a remar. It will appear
  in roman letters as the defintions and examples.
\end{remark}

An example may have an emphasized text at the beginning to clearly state what
is done, but this is not a rule.

\begin{example}\label{myexample} \emph{We give an example that has an
    emphasized statement}.

Now it should follow the example which will be typed in roman letters.
\end{example}

A fancy kind of remark (no numbering, tags are manually put, etc.) is
available.

\begin{varremark}[Remark A] This is a remark.
\end{varremark}

For emphesizing text do not use boldface. Instead, the command
$\backslash$\texttt{emph} is highly recommended.

Anther important recommendation is: do not use your own breaks. This class file
\texttt{jotartc.cls} is designed in such a way tho produce automatically 
spaces whenever
is needed, and it reflects the style adopted by the technical staff of the
Journal of Operator Theory.

You should use all-over the article labeled cross references by using
 $\backslash$\texttt{ref} command, e.g.\ citing
 Theorem~\ref{myfriendstheorem}. For equations it is recommended to use
 instead
the command $\backslash$\texttt{eqref}, like e.g.\
 \eqref{nice}, that produces the round brackets as well.

It is recommended to use alignments as follows:
\begin{align*} B(t) & = B(t+1)+B(t+2)+B(t+3) \\
                    & = A(t)
\end{align*}

You should be aware that complicated and longer aligned formulas can produce
rare pages, because of the page break problems.

Citations of bibliography, like \cite{mft}, should be done by labels. 

Graphics and diagrams can be used by loading various \AMS-\LaTeX\ packages
available in the standard distribution. However, do not use packages that
alter the 
layout of the pages when comparing to the style used in the Journal of
Operator Theory. And equally important, do not use comercial or customized
packages.

When coding your \AMS-\LaTeX\ file, please bear in mind the
following general rules:

\nr{1} Use the packages \texttt{amsmath, amssymb, amsfonts},
etc.\ for quality
  mathematical typesetting.

\nr{2} Use the \LaTeXe\ and \AMS-\LaTeX\ commands and
    cross-reference capabilities
 as much as possible. Do not hardcode your own layout, for example by
 creating your own section headings, theorems and the like, displayed
 equations, etc. Do not use your own spacing: use as much as possible the
 \AMS-\LaTeX\ capabilities available in the {\tt amsmath} package.

\nr{3} Keep it simple.
Do not define macros to create a complicated layout, as
these will make the input process complicated.

\nr{4} Be consistent.
If you use a macro for a phrase, use it throughout.

\nr{5} Figures may be inserted in the usual way using an
 $\backslash${\tt includegraphics}
command at the position in the article
  where they are cited.

\nr{6} If the \LaTeX\ file is suitable, proofs will be produced without
rekeying the text. 

\nr{7} Please be aware of the fact that the style rules of the JOT are a
rather extensive list and some your article will be technically edited and
copy edited, in order to comply to all these rules.

\begin{acknowledgements} This paper was partially supported by my right pocket.
\end{acknowledgements}

\begin{thebibliography}{99}

\bibitem{mfa} \textsc{M.F. Author}, Title of the article, \textit{J. Operator
    Theory}, \textbf{79}(2009), 123-145.

\bibitem{mfc} \textsc{M. Name, Y. Name}, \textit{Title of the Book}, Theta, 
Bucharest 2004.

\bibitem{mft} \textsc{M. Student}, \textit{Title of the Dissertation}, PhD
  Dissertation, My University, My Town 1450.

\end{thebibliography}

\end{document}
