%%%%%%%%title of contribution
\Atitle{Adaptive Finite Elements on Quadrilateral Meshes}
%%%%%%%%name of authors connected by "and"
\Aauthor{Roland Becker}
%%%%%%%%abbreviation of authors names for running header
\renewcommand{\rauthor}{F. Author}
%%%%%%%affiliations and e-mail
\Aaddress{%
LMA -- INRIA - EPI CONCHA\\
Université de Pau et des Pays de l'Adour\\
BP 1155, 64013 Pau Cedex
 \quad{\tt roland.backer@univ-pau.fr}}
%%%%%%%abstract of contribution
\Aabstract{%
We propose an adaptive finite element algorithm on a sequence of locally refined 
quadrilateral meshes with hanging nodes. For the model problem, the convergence 
of the algorithm as well as complexity estimates are considered.
}