"Symplifications of tensor expressions  and computations
        with Kerr-Schild metrics"

        Nikolai Vasiliev, 
        St.Petersburg Department of Mathematical Institute,
        St.Petersburg, Russia


Abstract:

A comparison of different algorithms for tensor simplification is
presented from both theoretical and practical point of view. As an
application some computations with Kerr-Shild metrics and Kerr-Shild
transformations will be presented.