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With a shift
,
the shifted QEP is
![\begin{displaymath}
\left(\mu^2 \widehat{M} + \mu \widehat{C} + \widehat{K} \right) x = 0,
\end{displaymath}](img3345.png) |
(260) |
where
,
,
and
.
The shift transforms eigenvalues
of (9.1) close to
into eigenvalues
close to
.
The corresponding generalized ``linear'' eigenvalue problem is (again
in terms of
, rather than
)
or
if the Hermitian of the matrix triplet
wants to be preserved.
Susan Blackford
2000-11-20