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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.

Adrianna GillmanPer-Gunnar Martinsson
Published in: SIAM J. Sci. Comput. (2014)
Keyphrases
  • high order
  • higher order
  • pairwise
  • computational complexity
  • partial differential equations
  • fourth order
  • image processing
  • face recognition
  • maximum entropy
  • arithmetic coding