Balanced truncation model reduction for large-scale systems in descriptor form V Mehrmann, T Stykel Dimension Reduction of Large-Scale Systems 45, 83-115, 2005 | 263 | 2005 |

Gramian-based model reduction for descriptor systems T Stykel Mathematics of Control, Signals and Systems 16 (4), 297-319, 2004 | 247 | 2004 |

Numerical solution and perturbation theory for generalized Lyapunov equations T Stykel Linear Algebra and its Applications 349 (1-3), 155-185, 2002 | 211 | 2002 |

Balanced truncation model reduction of second-order systems T Reis, T Stykel Mathematical and Computer Modelling of Dynamical Systems 14 (5), 391-406, 2008 | 197 | 2008 |

Model reduction of descriptor systems by interpolatory projection methods S Gugercin, T Stykel, S Wyatt SIAM Journal on Scientific Computing 35 (5), B1010-B1033, 2013 | 161 | 2013 |

Positive real and bounded real balancing for model reduction of descriptor systems T Reis, T Stykel International Journal of Control 83 (1), 74-88, 2010 | 115 | 2010 |

Low-rank iterative methods for projected generalized Lyapunov equations T Stykel Electron. Trans. Numer. Anal 30, 187-202, 2008 | 114 | 2008 |

Balanced truncation model reduction for semidiscretized Stokes equation T Stykel Linear Algebra and its Applications 415 (2-3), 262-289, 2006 | 106 | 2006 |

Stability and inertia theorems for generalized Lyapunov equations T Stykel Linear Algebra and its Applications 355 (1-3), 297-314, 2002 | 105 | 2002 |

Model order reduction for differential-algebraic equations: a survey P Benner, T Stykel Surveys in Differential-Algebraic Equations IV, 107-160, 2017 | 103 | 2017 |

PABTEC: Passivity-preserving balanced truncation for electrical circuits T Reis, T Stykel IEEE Transactions on Computer-Aided Design of Integrated Circuits and …, 2010 | 87 | 2010 |

Stability analysis and model order reduction of coupled systems T Reis, T Stykel Mathematical and Computer Modelling of Dynamical Systems 13 (5), 413-436, 2007 | 65 | 2007 |

Descriptor Systems: A General Mathematical Framework for Modelling, Simulation and Control (Deskriptorsysteme: Ein allgemeines mathematisches Konzept für Modellierung … V Mehrmann, T Stykel at-Automatisierungstechnik 54 (8/2006), 405-415, 2006 | 64 | 2006 |

Krylov subspace methods for projected Lyapunov equations T Stykel, V Simoncini Applied Numerical Mathematics 62 (1), 35-50, 2012 | 63 | 2012 |

A survey on model reduction of coupled systems T Reis, T Stykel Model order reduction: theory, research aspects and applications, 133-155, 2008 | 63 | 2008 |

Model reduction of periodic descriptor systems using balanced truncation P Benner, MS Hossain, T Stykel Model Reduction for Circuit Simulation, 193-206, 2011 | 53 | 2011 |

Lyapunov balancing for passivity-preserving model reduction of RC circuits T Reis, T Stykel SIAM Journal on Applied Dynamical Systems 10 (1), 1-34, 2011 | 48 | 2011 |

On Criteria for Asymptotic Stability of Differential‐Algebraic Equations T Stykel ZAMM‐Journal of Applied Mathematics and Mechanics/Zeitschrift für Angewandte …, 2002 | 47 | 2002 |

On some norms for descriptor systems T Stykel IEEE transactions on automatic control 51 (5), 842-847, 2006 | 46 | 2006 |

Low-rank iterative methods for periodic projected Lyapunov equations and their application in model reduction of periodic descriptor systems P Benner, MS Hossain, T Stykel Numerical Algorithms 67 (3), 669-690, 2014 | 43 | 2014 |