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Talk Abstract
Fast Spectral-Galerkin Methods and its Applications

Jie Shen, Jie Shen

We shall present in this talk some fast spectral-Galerkin algorithms developed in the last few years. Their computational complexities are comparable to those of finite difference and finite element algorithms, yet they provide much more accurate results while using a significantly smaller number of unknowns. Furthermore, the most computationally intensive components in these algorithms are matrix multiplications and/or fast Fourier transforms/fast multipole methods for which existing parallel software can be readily applied.

We shall also present recent numerical results using these fast spectral-Galerkin algorithms for various scientific and engineering applications, including computational fluid dynamics, atmosphere and oceanographic sciences and material sciences.

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1996-1997 Mathematics in High Performance Computing

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