Domain decomposition multigrid for unstructured grids

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Description

A two-level preconditioning method for the solution of elliptic boundary value problems using finite element schemes on possibly unstructured meshes is introduced. It is based on a domain decomposition and a Galerkin scheme for the coarse level vertex unknowns. For both the implementation and the analysis, it is not required that the curves of discontinuity in the coefficients of the PDE match the interfaces between subdomains. Generalizations to nonmatching or overlapping grids are made.

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11 p.

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Shapira, Yair January 1, 1997.

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Description

A two-level preconditioning method for the solution of elliptic boundary value problems using finite element schemes on possibly unstructured meshes is introduced. It is based on a domain decomposition and a Galerkin scheme for the coarse level vertex unknowns. For both the implementation and the analysis, it is not required that the curves of discontinuity in the coefficients of the PDE match the interfaces between subdomains. Generalizations to nonmatching or overlapping grids are made.

Physical Description

11 p.

Notes

OSTI as DE97002314

Source

  • Other Information: PBD: [1997]

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  • Other: DE97002314
  • Report No.: LA-UR--96-3702
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/420366 | External Link
  • Office of Scientific & Technical Information Report Number: 420366
  • Archival Resource Key: ark:/67531/metadc678965

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Creation Date

  • January 1, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

Description Last Updated

  • May 20, 2016, 1:11 p.m.

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Shapira, Yair. Domain decomposition multigrid for unstructured grids, report, January 1, 1997; New Mexico. (digital.library.unt.edu/ark:/67531/metadc678965/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.