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\noindent {\bf Abstract.}  Hello this is sample file.
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\noindent {\bf 2010 Mathematics Subject Classification:}
20F28, 20F18.

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\noindent {\bf Keywords:} absolute center, autocenteral automorphisms.








\begin{thebibliography}{[99]}

%\bibitem{adn} J. E. Adney and T. Yen, {\em Automorphisms of a p-group}, Illionois J. Math. 9(1965), 137-143.

\bibitem{rob} D. J. S., Robinson, {\em A Course in the Theory of Groups}, Springer-verlag, New York/Berlin,{\bf 1982}.

%\bibitem{mog} R. R. M. Moghaddam, H. Safa, {\em Some properties of autocenteral automorphisms of a group}, Ricerche mat.{\bf(2010)} 59:257-264.


\bibitem{fou} T.  A.  Fournelle, {\em Torsion  in semicomplete  nilpotent  groups},  Math.  Proc.  Cambridge  Philos.  Soc., {\bf 94}.

\bibitem{heg} P. B. Hegarty, {\em The absolute centre of a group}, J. Algebra 169,{\bf (1994)} 929-935.

   
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