On Perron–Frobenius property of matrices having some negative entries D Noutsos Linear Algebra and its Applications 412 (2-3), 132-153, 2006 | 167 | 2006 |

More on modifications and improvements of classical iterative schemes for M-matrices A Hadjidimos, D Noutsos, M Tzoumas Linear algebra and its applications 364, 253-279, 2003 | 125 | 2003 |

Reachability and holdability of nonnegative states D Noutsos, MJ Tsatsomeros SIAM Journal on Matrix Analysis and Applications 30 (2), 700-712, 2008 | 93 | 2008 |

Matrix algebra preconditioners for multilevel Toeplitz systems do not insure optimal convergence rate D Noutsos, SS Capizzano, P Vassalos Theoretical Computer Science 315 (2-3), 557-579, 2004 | 55 | 2004 |

On optimal improvements of classical iterative schemes for Z-matrices D Noutsos, M Tzoumas Journal of Computational and Applied Mathematics 188 (1), 89-106, 2006 | 36 | 2006 |

The parallel solution of banded linear equations by the new quadrant interlocking factorisation (QIF) method DJ Evans, A Hadjidimos, D Noutsos International Journal of Computer Mathematics 9 (2), 151-161, 1981 | 36 | 1981 |

On the equivalence of the k-step iterative Euler methods and successive overrelaxation (SOR) methods for k-cyclic matrices S Galanis, A Hadjidimos, D Noutsos Mathematics and computers in simulation 30 (3), 213-230, 1988 | 34 | 1988 |

New band Toeplitz preconditioners for ill-conditioned symmetric positive definite Toeplitz systems D Noutsos, P Vassalos SIAM journal on matrix analysis and applications 23 (3), 728-743, 2002 | 32 | 2002 |

Spectral equivalence and matrix algebra preconditioners for multilevel Toeplitz systems: a negative result D Noutsos, SS Capizzano, P Vassalos Contemporary Mathematics 323, 313-322, 2003 | 23 | 2003 |

On the Perron–Frobenius theory for complex matrices D Noutsos, RS Varga Linear algebra and its applications 437 (4), 1071-1088, 2012 | 20 | 2012 |

Propédeutique de l'algèbre linéaire: la coordination des registres de représentation sémiotique K Pavlopoulou Strasbourg 1, 1994 | 17 | 1994 |

Essential spectral equivalence via multiple step preconditioning and applications to ill conditioned Toeplitz matrices D Noutsos, S Serra-Capizzano, P Vassalos Linear Algebra and its Applications 491, 276-291, 2016 | 14 | 2016 |

Superlinear convergence for PCG using band plus algebra preconditioners for Toeplitz systems D Noutsos, P Vassalos Computers & Mathematics with Applications 56 (5), 1255-1270, 2008 | 14 | 2008 |

On different classes of monoparametric stationary iterative methods for the solution of linear systems S Galanis, A Hadjidimos, D Noutsos Mathematics and computers in simulation 28 (2), 115-128, 1986 | 14 | 1986 |

A preconditioning proposal for ill‐conditioned Hermitian two‐level Toeplitz systems D Noutsos, SS Capizzano, P Vassalos Numerical linear algebra with applications 12 (2‐3), 231-239, 2005 | 13 | 2005 |

Perron Frobenius theory and some extensions D Noutsos Department of Mathematics, University of Ionnina, Greece, 2008 | 12 | 2008 |

Block band Toeplitz preconditioners derived from generating function approximations: analysis and applications D Noutsos, SS Capizzano, P Vassalos Numerische Mathematik 104 (3), 339-376, 2006 | 12 | 2006 |

Two-level Toeplitz preconditioning: approximation results for matrices and functions D Noutsos, SS Capizzano, P Vassalos SIAM Journal on Scientific Computing 28 (2), 439-458, 2006 | 12 | 2006 |

On the convergence domains of the p-cyclic SOR A Hadjidimos, D Noutsos, M Tzoumas Journal of computational and applied mathematics 72 (1), 63-83, 1996 | 12 | 1996 |

On the convergence of monoparametric *k*-step iterative euler methods for the solution of linear systemsS Galanis, A Hadjidimos, D Noutsos International journal of computer mathematics 26 (1), 45-56, 1988 | 12 | 1988 |