A comparison of iterative methods to solve complex valued linear algebraic systems O Axelsson, M Neytcheva, B Ahmad Numerical Algorithms 66, 811-841, 2014 | 134 | 2014 |

Algebraic multilevel iteration method for Stieltjes matrices O Axelsson, M Neytcheva Numerical linear algebra with applications 1 (3), 213-236, 1994 | 108 | 1994 |

Eigenvalue estimates for preconditioned saddle point matrices O Axelsson, M Neytcheva Numerical Linear Algebra with Applications 13 (4), 339-360, 2006 | 98 | 2006 |

Preconditioning methods for linear systems arising in constrained optimization problems O Axelsson, M Neytcheva Numerical linear algebra with applications 10 (1‐2), 3-31, 2003 | 97 | 2003 |

Comparison of preconditioned Krylov subspace iteration methods for PDE-constrained optimization problems: Poisson and convection-diffusion control O Axelsson, S Farouq, M Neytcheva Numerical Algorithms 73, 631-663, 2016 | 90 | 2016 |

Preconditioning of boundary value problems using elementwise Schur complements O Axelsson, R Blaheta, M Neytcheva SIAM Journal on Matrix Analysis and Applications 31 (2), 767-789, 2009 | 66 | 2009 |

Spectral analysis of coupled PDEs and of their Schur complements via generalized locally Toeplitz sequences in 2D A Dorostkar, M Neytcheva, S Serra-Capizzano Computer Methods in Applied Mechanics and Engineering 309, 74-105, 2016 | 58 | 2016 |

The algebraic multilevel iteration methods-theory and applications AOH Axelsson, MG Neytcheva onbekend: Subfaculty Mathematics, 1993 | 55 | 1993 |

Uniform estimate of the constant in the strengthened CBS inequality for anisotropic non‐conforming FEM systems R Blaheta, S Margenov, M Neytcheva Numerical Linear Algebra with Applications 11 (4), 309-326, 2004 | 46 | 2004 |

Robust optimal multilevel preconditioners for non‐conforming finite element systems R Blaheta, S Margenov, M Neytcheva Numerical Linear Algebra with Applications 12 (5‐6), 495-514, 2005 | 42 | 2005 |

Numerical and computational efficiency of solvers for two-phase problems O Axelsson, P Boyanova, M Kronbichler, M Neytcheva, X Wu Computers & Mathematics with Applications 65 (3), 301-314, 2013 | 41 | 2013 |

A preconditioner for optimal control problems, constrained by Stokes equation with a time-harmonic control O Axelsson, S Farouq, M Neytcheva Journal of Computational and Applied Mathematics 310, 5-18, 2017 | 36 | 2017 |

Efficient numerical solution of discrete multi-component Cahn–Hilliard systems P Boyanova, M Neytcheva Computers & Mathematics with Applications 67 (1), 106-121, 2014 | 36 | 2014 |

Efficient preconditioners for large scale binary Cahn-Hilliard models P Boyanova, M Do-Quang, M Neytcheva Computational Methods in Applied Mathematics 12 (1), 1-22, 2012 | 36 | 2012 |

A robust structured preconditioner for time-harmonic parabolic optimal control problems ZZ Liang, O Axelsson, M Neytcheva Numerical Algorithms 79 (2), 575-596, 2018 | 34 | 2018 |

On element-by-element Schur complement approximations M Neytcheva Linear Algebra and Its Applications 434 (11), 2308-2324, 2011 | 32 | 2011 |

Solving the Stokes problem on a massively parallel computer O Axelsson, VA Barker, M Neytcheva, B Polman Mathematical Modelling and Analysis 6 (1), 7-27, 2001 | 29 | 2001 |

A general approach to analyse preconditioners for two‐by‐two block matrices O Axelsson, M Neytcheva Numerical Linear Algebra with Applications 20 (5), 723-742, 2013 | 27 | 2013 |

On an augmented Lagrangian-based preconditioning of Oseen type problems X He, M Neytcheva, SS Capizzano BIT Numerical Mathematics 51, 865-888, 2011 | 25 | 2011 |

Arithmetic and communication complexity of preconditioning methods MG Neytcheva [Sl: sn], 1995 | 25 | 1995 |