Spatio-temporal pattern formation on spherical surfaces: numerical simulation and application to solid tumour growth MAJ Chaplain, M Ganesh, IG Graham Journal of mathematical biology 42 (5), 387-423, 2001 | 251 | 2001 |

Domain decomposition for multiscale PDEs IG Graham, PO Lechner, R Scheichl Numerische Mathematik 106 (4), 589-626, 2007 | 189 | 2007 |

A new multiscale finite element method for high-contrast elliptic interface problems CC Chu, I Graham, TY Hou Mathematics of Computation 79 (272), 1915-1955, 2010 | 181 | 2010 |

Numerical-asymptotic boundary integral methods in high-frequency acoustic scattering S Chandler-Wilde, IG Graham, S Langdon, EA Spence Acta numerica 21, 89-305, 2012 | 177 | 2012 |

Quasi-Monte Carlo methods for elliptic PDEs with random coefficients and applications IG Graham, FY Kuo, D Nuyens, R Scheichl, IH Sloan Journal of Computational Physics 230 (10), 3668-3694, 2011 | 156 | 2011 |

A high-order algorithm for obstacle scattering in three dimensions M Ganesh, IG Graham Journal of Computational Physics 198 (1), 211-242, 2004 | 137 | 2004 |

Piecewise continuous collocation for integral equations K Atkinson, I Graham, I Sloan SIAM Journal on Numerical Analysis 20 (1), 172-186, 1983 | 127 | 1983 |

Quasi-Monte Carlo finite element methods for elliptic PDEs with lognormal random coefficients IG Graham, FY Kuo, JA Nichols, R Scheichl, C Schwab, IH Sloan Numerische Mathematik 131 (2), 329-368, 2015 | 114 | 2015 |

A hybrid numerical-asymptotic boundary integral method for high-frequency acoustic scattering V Domínguez, IG Graham, VP Smyshlyaev Numerische Mathematik 106 (3), 471-510, 2007 | 114 | 2007 |

Inexact inverse iteration for symmetric matrices J Berns-Müller, IG Graham, A Spence Linear Algebra and its Applications 416 (2-3), 389-413, 2006 | 106 | 2006 |

Fully discrete spectral boundary integral methods for Helmholtz problems on smooth closed surfaces in IG Graham, IH Sloan Numerische Mathematik 92 (2), 289-323, 2002 | 101 | 2002 |

High-order methods for linear functionals of solutions of second kind integral equations IG Graham, GA Chandler SIAM journal on numerical analysis 25 (5), 1118-1137, 1988 | 101 | 1988 |

Unstructured additive Schwarz--conjugate gradient method for elliptic problems with highly discontinuous coefficients IG Graham, MJ Hagger SIAM Journal on Scientific Computing 20 (6), 2041-2066, 1999 | 94 | 1999 |

Product integration-collocation methods for noncompact integral operator equations GA Chandler, IG Graham Mathematics of computation 50 (181), 125-138, 1988 | 92 | 1988 |

Stability and error estimates for Filon–Clenshaw–Curtis rules for highly oscillatory integrals V Dominguez, IG Graham, VP Smyshlyaev IMA journal of numerical analysis 31 (4), 1253-1280, 2011 | 90 | 2011 |

Finite elements on degenerate meshes: inverse-type inequalities and applications IG Graham, W Hackbusch, SA Sauter IMA journal of numerical analysis 25 (2), 379-407, 2005 | 88 | 2005 |

Inverse inequalities on non-quasi-uniform meshes and application to the mortar element method W Dahmen, B Faermann, I Graham, W Hackbusch, S Sauter Mathematics of computation 73 (247), 1107-1138, 2004 | 87 | 2004 |

Condition number estimates for combined potential integral operators in acoustics and their boundary element discretisation T Betcke, SN Chandler‐Wilde, IG Graham, S Langdon, M Lindner Numerical Methods for Partial Differential Equations 27 (1), 31-69, 2011 | 81 | 2011 |

A convergent adaptive method for elliptic eigenvalue problems S Giani, IG Graham SIAM journal on numerical analysis 47 (2), 1067-1091, 2009 | 81 | 2009 |

Condition number estimates for combined potential boundary integral operators in acoustic scattering SN Chandler-Wilde, IG Graham, S Langdon, M Lindner The Journal of Integral Equations and Applications, 229-279, 2009 | 80 | 2009 |