l., 16, pp. 359-367, 1979.

  [3] Demmel, J.
      The Condition Number of Equivalence Transformations that
      Block Diagonalize Matrix Pencils.
      SIAM J. Numer. Anal., 20, pp. 599-610, 1983.

</PRE>
<A name="Numerical Aspects"><B><FONT SIZE="+1">Numerical Aspects</FONT></B></A>
<PRE>                                    3                     4
  The algorithm usually requires 0(N ) operations, but 0(N ) are
  possible in the worst case, when the matrix pencil cannot be
  diagonalized by well-condition