A direct solver with \(O(N)\) complexity for variable coefficient elliptic PDEs discretized via a high-order composite spectral collocation method (Q6486767)
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scientific article; zbMATH DE number 6370178
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | A direct solver with \(O(N)\) complexity for variable coefficient elliptic PDEs discretized via a high-order composite spectral collocation method |
scientific article; zbMATH DE number 6370178 |
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A direct solver with \(O(N)\) complexity for variable coefficient elliptic PDEs discretized via a high-order composite spectral collocation method (English)
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17 November 2014
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fast direct solver
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high-order discretization
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multidomain spectral method
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nested dissection
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multifrontal method
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structured matrix algebra
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hierarchically block separable matrix
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reduction to interface
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Dirichlet-to-Neumann operator
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Poincaré-Steklov operator
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numerical examples
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Helmholtz equation
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