%For details on how to use AMS TeX please see:
%M. D. Spivak, A Gourmet Guide to typesetting with AMS TeX macro package,
%American Mathematical Society, Providence, Rhode Island, 1990
\input amstex
\documentstyle{amsppt}
\pageheight{25truecm}
\pagewidt{17truecm}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%Put your local definitions here, for example
%\define\MyNewCommand#1{This is my new command #1}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\topmatter
\title
This is the title of your talk or paper
\endtitle
\author
A. U. Thor
\endauthor
\address
This is your address.
For every co-author should be given separately.
\endaddress
\curraddr
This is your current address.
It is not necessary if the current address councides with the address.
\endcurraddr
\email
Here you put the e-mail address
For every co-author should be given separately.
\endemail
\date
Here you put the date when you sent this file.
\enddate
%AMS Math Subject Classifications
\subjclass
Primary ?????, ?????;
Secondary ?????, ?????
\endsubjclass
\abstract
Here you put the abstract of your paper.
\endabstract
\thanks
Here you put the thanks to sponsors if any.
\endthanks
\endtopmatter
\document
%%%%%%%%%%%%%%%%%%%%%%%%
%Here your text starts.
%Below are some examples on how to type mathematics.
%Please run AMS TeX to see how does it look like.
%%%%%%%%%%%%%%%%%%%%%%%%
\head
First level head
\endhead
\subhead
Second level head
\endsubhead
\subsubhead
Third level head
\endsubsubhead
\proclaim {Theorem 1}
If $a=b$ then $b=a$.
\endproclaim
\remark {Remark 1}
Theorem 1 is valid for $a=0$ and $b=0$.
\endremark
\demo {Proof of Theorem 1}
The proof is obvious.
\qed\enddemo
\definition {Definition 1}
A number $n$ is called positive if $n>0$.
\enddefinition
\example {Example 1}
Any natural number is positive.
\endexample
\head Displayed formula \endhead
$$
\sin^2x+\cos^2x=1.
$$
\head Gather \endhead
$$
\gather
\sin^2x+\cos^2x=1,
\\
1+2+\dots+n=\frac {n(n+1)}2.
\endgather
$$
\head Align \endhead
$$
\align
\sin^2x+\cos^2x&=1
\\
&=2-1.
\endalign
$$
\Refs
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%Here your list of references starts.
%Below are two examples of how to type references.
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\ref
\no 1
\by A. U. Thor
\yr 2002
\book The title of the book
\publ The name of the publishers
\publaddr The address of the publishers
\endref
\ref
\no 2
\by A. U. Thor
\yr 2002
\paper The title of the paper
\jour The name of the journal
\vol 1
\issue 2
\pages 3--4
\endref
\endRefs
\enddocument