Iterative methods for the solution of elliptic problems on regions partitioned into substructures PE Bjørstad, OB Widlund SIAM Journal on Numerical Analysis 23 (6), 1097-1120, 1986 | 734 | 1986 |

Progress in sparse matrix methods for large linear systems on vector supercomputers C Cleveland Ashcraft, RG Grimes, JG Lewis, BW Peyton, HD Simon, ... The International Journal of Supercomputing Applications 1 (4), 10-30, 1987 | 216 | 1987 |

Fast numerical solution of the biharmonic Dirichlet problem on rectangles P Bjørstad SIAM Journal on Numerical Analysis 20 (1), 59-71, 1983 | 140 | 1983 |

On the spectra of sums of orthogonal projections with applications to parallel computing PE Bjørstad, J Mandel BIT Numerical Mathematics 31 (1), 76-88, 1991 | 124 | 1991 |

To overlap or not to overlap: A note on a domain decomposition method for elliptic problems PE Bjørstad, OB Widlund SIAM Journal on Scientific and Statistical Computing 10 (5), 1053-1061, 1989 | 93 | 1989 |

On the relationship between the multiscale finite-volume method and domain decomposition preconditioners JM Nordbotten, PE Bjørstad Computational Geosciences 12, 367-376, 2008 | 87 | 2008 |

Timely communication: Efficient algorithms for solving a fourth-order equation with the Spectral-Galerkin method PE Bjørstad, BP Tjøstheim SIAM Journal on Scientific Computing 18 (2), 621-632, 1997 | 83 | 1997 |

Efficient matrix multiplication on SIMD computers P Bjørstad, F Manne, T Sørevik, M Vajteršic SIAM Journal on Matrix Analysis and Applications 13 (1), 386-401, 1992 | 61 | 1992 |

Solving elliptic problems on regions partitioned into substructures PE Bjørstad, OB Widlund Elliptic Problem Solvers, 245-255, 1984 | 59 | 1984 |

Domain decomposition algorithms of Schwarz type, designed for massively parallel computers PE Bjorstad, M Skogen 5th Int. Symp. Domain Decomposition Methods for Partial Differential …, 1992 | 56 | 1992 |

A massively parallel reservoir simulator T Kaarstad, J Frøyen, P Bjørstad, M Espedal SPE Reservoir Simulation Conference?, SPE-29139-MS, 1995 | 50 | 1995 |

Conformal mapping of circular arc polygons P Bjørstad, E Grosse SIAM journal on scientific and statistical computing 8 (1), 19-32, 1987 | 50 | 1987 |

Additive Schwarz methods without subdomain overlap and with new coarse spaces PE Bjørstad, M Dryja, E Vainikko Domain decomposition methods in sciences and engineering (Beijing, 1995 …, 1997 | 45 | 1997 |

Numerical solution of the biharmonic equation PE Bjorstad Stanford University, 1981 | 44 | 1981 |

High precision solutions of two fourth order eigenvalue problems PE Bjørstad, BP Tjøstheim Computing 63 (2), 97-107, 1999 | 43 | 1999 |

Extrapolation of asymptotic expansions by a modified Aitken δ^{2}-formulaP Bjørstad, G Dahlquist, E Grosse | 43 | 1981 |

Domain decomposition solvers for large scale industrial finite element problems PE Bjørstad, J Koster, P Krzyżanowski Applied Parallel Computing. New Paradigms for HPC in Industry and Academia …, 2001 | 42 | 2001 |

Parallel multilevel methods for elliptic partial differential equations BF Smith, P Bjorstad, WD Gropp Domain Decomposition, 1996 | 42 | 1996 |

Additive Schwarz methods for elliptic mortar finite element problems PE Bjørstad, M Dryja, T Rahman Numerische Mathematik 95 (3), 427-457, 2003 | 31 | 2003 |

Parallel solution of partial differential equations P Bjorstad, M Luskin Springer Science & Business Media, 2012 | 28 | 2012 |