1·î28Æü(ÌÚ)  15:00 -- 16:00  Dong Woo Sheen (Seoul National University, Korea)
            ``Fast Linear Solvers for Laplace Transformation Methods for
              Parabolic Problems"


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We begin with a brief review on the Laplace transformation methods for 
parabolic problems. After we take Laplace transforms of  the parabolic 
problems in time, we solve the resulting complex-valued elliptic problems 
on a suitably chosen contour. The Laplace transformed elliptic problems 
are Helmholtz type. We will discuss some fast linear solvers for the set 
of complex-valued Laplace transformed elliptic problems. The the original
time-domain solution is recovered by taking the Laplace inversion. Numerical
 results and applications will be given.