ses to the linear algebra
      parts of Trilinos that provide almost the
      same interfaces as the built-in <acronym>deal.II</acronym> linear
      algebra classes. We use these interfaces for parallel computations based
      on MPI since the native deal.II linear algebra classes lack this
      ability. They are used, among other programs, in step-31 and step-32.
    </p>

    <p>
      While building deal.II with Trilinos is covered in
      the <a href="../readme.html">ReadMe file</a>, we here give 