Explicit approximate inverse preconditioning techniques GA Gravvanis Archives of Computational Methods in Engineering 9 (4), 371-402, 2002 | 54 | 2002 |

The rate of convergence of explicit approximate inverse preconditioning GA Gravvanis International journal of computer mathematics 60 (1-2), 77-89, 1996 | 43 | 1996 |

High performance inverse preconditioning GA Gravvanis Archives of Computational Methods in Engineering 16 (1), 77, 2009 | 36 | 2009 |

Managing spatial graph dependencies in large volumes of traffic data for travel-time prediction A Salamanis, DD Kehagias, CK Filelis-Papadopoulos, D Tzovaras, ... IEEE Transactions on Intelligent Transportation Systems 17 (6), 1678-1687, 2015 | 31 | 2015 |

An approximate inverse matrix technique for arrowhead matrices GA Gravvanis International journal of computer mathematics 70 (1), 35-45, 1998 | 30 | 1998 |

Explicit preconditioned iterative methods for solving large unsymmetric finite element systems EA Lipitakis, GA Gravvanis Computing 54 (2), 167-183, 1995 | 28 | 1995 |

Parallel matrix techniques GA Gravvanis Computational fluid dynamics'98, 472-477, 1998 | 27 | 1998 |

On the optimization of free resources using non-homogeneous Markov chain software rejuvenation model VP Koutras, AN Platis, GA Gravvanis Reliability Engineering & System Safety 92 (12), 1724-1732, 2007 | 25 | 2007 |

CLOUDLIGHTNING: A Framework for a Self-organising and Self-managing Heterogeneous Cloud. T Lynn, H Xiong, D Dong, B Momani, GA Gravvanis, ... CLOSER (1), 333-338, 2016 | 22 | 2016 |

Solving finite difference linear systems on GPUs: CUDA based parallel explicit preconditioned biconjugate conjugate gradient type methods GA Gravvanis, CK Filelis-Papadopoulos, KM Giannoutakis The Journal of Supercomputing 61 (3), 590-604, 2012 | 20 | 2012 |

Explicit preconditioned generalized domain decomposition methods GA Gravvanis International Journal of Applied Mathematics 4 (1), 57-72, 2000 | 17 | 2000 |

An explicit sparse unsymmetric finite element solver GA Gravvanis, EA Lipitakis Communications in numerical methods in engineering 12 (1), 21-29, 1996 | 17 | 1996 |

Generic approximate sparse inverse matrix techniques CK Filelis-Papadopoulos, GA Gravvanis International Journal of Computational Methods 11 (06), 1350084, 2014 | 15 | 2014 |

Optimal server resource reservation policies for priority classes of users under cyclic non-homogeneous markov modeling VP Koutras, AN Platis, GA Gravvanis European Journal of Operational Research 198 (2), 545-556, 2009 | 15 | 2009 |

On the performance of parallel approximate inverse preconditioning using Java multithreading techniques GA Gravvanis, VN Epitropou, KM Giannoutakis Applied mathematics and computation 190 (1), 255-270, 2007 | 15 | 2007 |

Explicit isomorphic iterative methods for solving arrow-type linear systems GA Gravvanis International journal of computer mathematics 74 (2), 195-205, 2000 | 15 | 2000 |

Explicit preconditioned methods for solving 3d boundary-value problems by approximate inverse finite element matrix techniques GA Gravvanis International journal of computer mathematics 56 (1-2), 77-93, 1995 | 15 | 1995 |

A class of explicit preconditioned conjugate gradient methods for solving large finite element systems EA Lipitakis, GA Gravvanis International journal of computer mathematics 44 (1-4), 189-206, 1992 | 15 | 1992 |

An efficient method for computing the inverse of arrowhead matrices HS Najafi, SA Edalatpanah, GA Gravvanis Applied mathematics letters 33, 1-5, 2014 | 14 | 2014 |

High performance finite element approximate inverse preconditioning KM Giannoutakis, GA Gravvanis Applied mathematics and computation 201 (1-2), 293-304, 2008 | 14 | 2008 |