High order ADI method for solving unsteady convection–diffusion problems S Karaa, J Zhang Journal of Computational Physics 198 (1), 1-9, 2004 | 264 | 2004 |

A numerical study of a 3D bioheat transfer problem with different spatial heating S Karaa, J Zhang, F Yang Mathematics and Computers in simulation 68 (4), 375-388, 2005 | 92 | 2005 |

Finite volume element method for two-dimensional fractional subdiffusion problems S Karaa, K Mustapha, AK Pani IMA Journal of Numerical Analysis 37 (2), 945-964, 2017 | 60 | 2017 |

A high-order compact ADI method for solving three‐dimensional unsteady convection‐diffusion problems S Karaa Numerical Methods for Partial Differential Equations 22 (4), 983-993, 2006 | 57 | 2006 |

Sharp estimates for the eigenvalues of some differential equations S Karaa SIAM Journal on Mathematical Analysis 29 (5), 1279-1300, 1998 | 46 | 1998 |

Numerical approximation of semilinear subdiffusion equations with nonsmooth initial data M Al-Maskari, S Karaa SIAM Journal on Numerical Analysis 57 (3), 1524-1544, 2019 | 41 | 2019 |

Convergence and performance of iterative methods for solving variable coefficient convection-diffusion equation with a fourth-order compact difference scheme S Karaa, J Zhang Computers & Mathematics with Applications 44 (3-4), 457-479, 2002 | 34 | 2002 |

Optimal error analysis of a FEM for fractional diffusion problems by energy arguments S Karaa, K Mustapha, AK Pani Journal of Scientific Computing 74, 519-535, 2018 | 33 | 2018 |

Unconditionally stable ADI scheme of higher-order for linear hyperbolic equations S Karaa International Journal of Computer Mathematics 87 (13), 3030-3038, 2010 | 32 | 2010 |

High-order difference schemes for 2D elliptic and parabolic problems with mixed derivatives S Karaa Numerical Methods for Partial Differential Equations 23 (2), 366-378, 2007 | 31 | 2007 |

Analysis of stationary iterative methods for the discrete convection–diffusion equation with a 9-point compact scheme S Karaa, J Zhang Journal of computational and applied mathematics 154 (2), 447-476, 2003 | 30 | 2003 |

The time-fractional Cahn–Hilliard equation: analysis and approximation M Al-Maskari, S Karaa IMA Journal of Numerical Analysis 42 (2), 1831-1865, 2022 | 27 | 2022 |

An accurate LOD scheme for two-dimensional parabolic problems S Karaa Applied mathematics and computation 170 (2), 886-894, 2005 | 25 | 2005 |

Finite element θ-schemes for the acoustic wave equation S Karaa Advances in Applied Mathematics and Mechanics 3 (2), 181-203, 2011 | 22 | 2011 |

An *O*(*k*^{2} + *kh*^{2} + *h*^{4}) arithmetic average discretization for the solution of 1‐D nonlinear parabolic equationsRK Mohanty, S Karaa, U Arora Numerical Methods for Partial Differential Equations: An International …, 2007 | 21 | 2007 |

Error analysis of a FVEM for fractional order evolution equations with nonsmooth initial data S Karaa, AK Pani ESAIM: Mathematical Modelling and Numerical Analysis 52 (2), 773-801, 2018 | 19 | 2018 |

Semidiscrete finite element analysis of time fractional parabolic problems: a unified approach S Karaa SIAM Journal on Numerical Analysis 56 (3), 1673-1692, 2018 | 19 | 2018 |

Stability and convergence of fully discrete finite element schemes for the acoustic wave equation S Karaa Journal of Applied Mathematics and Computing 40, 659-682, 2012 | 19 | 2012 |

Error estimates for finite element approximations of a viscous wave equation S Karaa Numerical functional analysis and optimization 32 (7), 750-767, 2011 | 19 | 2011 |

A high-order ADI method for parabolic problems with variable coefficients S Karaa International Journal of Computer Mathematics 86 (1), 109-120, 2009 | 18 | 2009 |