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\Large
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		      Department of Mathematics\\
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                           University of Houston\\

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{{\Large\bf                Scientific Computing Seminar}}

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\large
 Nikolay Yavich\\
Department of Mathematics\\
University of Houston\\

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\Large

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{\bf Preconditioned Iterative Solvers\\
for Anisotropic Diffusion Problems}

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                         Thursday, March 5, 2009 \\
                               3:00 PM- 3:25 PM\\
%                           Room 127  \  \  \  S\&R1 \\
%                           Room 646  \   \  PGH \\
                         Room 634  \  \  \  S\&R1 \\
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\noindent {\bf Abstract:} 
In this talk, we present a new algebraic multigrid
preconditioner for strongly anisotropic diffusion
problems.   We analyze two test cases, develop
coarsening algorithms, and show numerical
results. The essential feature of our preconditioner
is that the condition number of the preconditioned
problem is independent of the mesh step size and equation coefficients.



 

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%\noindent {\bf Future talks in Scientific Computing Seminar}

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\noindent This seminar is easily accessible to persons with disabilities.
For more information or for assistance, please contact the Mathematics
Department at 743-3500.





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