The hp finite element method for problems in mechanics with boundary layers C Schwab, M Suri, C Xenophontos Computer methods in applied mechanics and engineering 157 (3-4), 311-333, 1998 | 97 | 1998 |

An analytical method for linear elliptic PDEs and its numerical implementation SR Fulton, AS Fokas, CA Xenophontos Journal of computational and applied mathematics 167 (2), 465-483, 2004 | 64 | 2004 |

The solution of Laplacian problems over L‐shaped domains with a singular function boundary integral method M Elliotis, G Georgiou, C Xenophontos Communications in numerical methods in engineering 18 (3), 213-222, 2002 | 56 | 2002 |

Solving Laplacian problems with boundary singularities: a comparison of a singular function boundary integral method with the p/hp version of the finite element method M Elliotis, G Georgiou, C Xenophontos Applied Mathematics and Computation 169 (1), 485-499, 2005 | 42 | 2005 |

Robust approximation of singularly perturbed delay differential equations by the hp finite element method S Nicaise, C Xenophontos Computational Methods in Applied Mathematics 13 (1), 21-37, 2013 | 38 | 2013 |

Cessation of annular Poiseuille flows of Bingham plastics M Chatzimina, C Xenophontos, GC Georgiou, I Argyropaidas, E Mitsoulis Journal of non-newtonian fluid mechanics 142 (1-3), 135-142, 2007 | 38 | 2007 |

Solution of the planar Newtonian stick–slip problem with the singular function boundary integral method M Elliotis, G Georgiou, C Xenophontos International journal for numerical methods in fluids 48 (9), 1001-1021, 2005 | 35 | 2005 |

A singular function boundary integral method for Laplacian problems with boundary singularities C Xenophontos, M Elliotis, G Georgiou SIAM Journal on Scientific Computing 28 (2), 517-532, 2006 | 34 | 2006 |

A numerical study on the finite element solution of singularly perturbed systems of reaction–diffusion problems C Xenophontos, L Oberbroeckling Applied Mathematics and Computation 187 (2), 1351-1367, 2007 | 32 | 2007 |

Robust exponential convergence of h p -FEM in balanced norms for singularly perturbed reaction-diffusion equations JM Melenk, C Xenophontos Calcolo 53 (1), 105-132, 2016 | 30 | 2016 |

Application of the *p*‐version of the finite element method to elastoplasticity with localization of deformationB Jeremić, C Xenophontos Communications in Numerical Methods in Engineering 15 (12), 867-876, 1999 | 30 | 1999 |

Finite element analysis of an exponentially graded mesh for singularly perturbed problems P Constantinou, C Xenophontos Computational Methods in Applied Mathematics 15 (2), 135-143, 2015 | 26 | 2015 |

Special boundary approximation methods for Laplace equation problems with boundary singularities—applications to the Motz problem ZC Li, YL Chan, GC Georgiou, C Xenophontos Computers & Mathematics with Applications 51 (1), 115-142, 2006 | 26 | 2006 |

Optimal mesh design for the finite element approximation of reaction–diffusion problems C Xenophontos International journal for numerical methods in engineering 53 (4), 929-943, 2002 | 26 | 2002 |

Numerical analysis meets number theory: using rootfinding methods to calculate inverses mod p n MP Knapp, C Xenophontos Applicable Analysis and Discrete Mathematics, 23-31, 2010 | 25 | 2010 |

The *hp* finite element method for singularly perturbed problems in nonsmooth domainsC Xenophontos Numerical Methods for Partial Differential Equations: An International …, 1999 | 25 | 1999 |

The hp finite element method for singularly perturbed problems in smooth domains CA Xenophontos Mathematical Models and Methods in Applied Sciences 8 (02), 299-326, 1998 | 25 | 1998 |

On the finite element approximation of systems of reaction-diffusion equations by p/hp methods C Xenophontos, L Oberbroeckling Journal of Computational Mathematics, 386-400, 2010 | 24 | 2010 |

Robust exponential convergence of hp FEM for singularly perturbed reaction–diffusion systems with multiple scales JM Melenk, C Xenophontos, L Oberbroeckling IMA Journal of Numerical Analysis 33 (2), 609-628, 2013 | 21 | 2013 |

Uniform approximation of singularly perturbed reaction‐diffusion problems by the finite element method on a Shishkin mesh C Xenophontos, SR Fulton Numerical Methods for Partial Differential Equations: An International …, 2003 | 21 | 2003 |