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- W2766808953 abstract "This manuscript presents an adaptive high order discretization technique for elliptic boundary value problems. The technique is applied to an updated version of the Hierarchical Poincare-Steklov (HPS) method. Roughly speaking, the HPS method is based on local pseudospectral discretizations glued together with Poincare-Steklov operators. The new version uses a modified tensor product basis which is more efficient and stable than previous versions. The adaptive technique exploits the tensor product nature of the basis functions to create a criterion for determining which parts of the domain require additional refinement. The resulting discretization achieves the user prescribed accuracy and comes with an efficient direct solver. The direct solver increases the range of applicability to time dependent problems where the cost of solving elliptic problems previously limited the use of implicit time stepping schemes." @default.
- W2766808953 created "2017-11-10" @default.
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- W2766808953 date "2017-10-24" @default.
- W2766808953 modified "2023-09-27" @default.
- W2766808953 title "An adaptive high order direct solution technique for elliptic boundary value problems" @default.
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