Poles and zeros of linear multivariable systems: a survey of the algebraic, geometric and complex-variable theory AGJ MacFarlane, N Karcanias International Journal of Control 24 (1), 33-74, 1976 | 634 | 1976 |

Structure and Smith-MacMillan form of a rational matrix at infinity AIG VARDULAKlS, DNJ Limebeer, N Karcanias International Journal of Control 35 (4), 701-725, 1982 | 113 | 1982 |

Grassmann invariants, almost zeros and the determinantal zero, pole assignment problems of linear multivariable systems N Karcanias, C GIANNAKOPOULOS International Journal of Control 40 (4), 673-698, 1984 | 100* | 1984 |

Global asymptotic linearisation of the pole placement map: a closed-form solution for the constant output feedback problem J Leventides, N Karcanias Automatica 31 (9), 1303-1309, 1995 | 99 | 1995 |

The output zeroing problem and its relationship to the invariant zero structure: a matrix pencil approach N Karcanias, B Kouvaritakis International Journal of Control 30 (3), 395-415, 1979 | 98 | 1979 |

Matrix pencil characterization of almost (A, Z)-invariant subspaces: A classification of geometric concepts S Jaffe, N Karcanias International Journal of Control 33 (1), 51-93, 1981 | 88 | 1981 |

Flow patterns at stented coronary bifurcations: computational fluid dynamics analysis DG Katritsis, A Theodorakakos, I Pantos, M Gavaises, N Karcanias, ... Circulation: Cardiovascular Interventions 5 (4), 530-539, 2012 | 80 | 2012 |

Feedback canonical forms of singular systems JJ Loiseau, K Özçaldiran, M Malabre, N Karcanias Kybernetika 27 (4), 289-305, 1991 | 77 | 1991 |

Generalised autonomous dynamical systems, algebraic duality and geometric theory N Karcanias, GE Hayton IFAC Proceedings Volumes 14 (2), 289-294, 1981 | 75 | 1981 |

The use of zeros and zero-directions in model reduction U Shaked, N Karcanias international Journal of Control 23 (1), 113-135, 1976 | 70 | 1976 |

A matrix pencil based numerical method for the computation of the GCD of polynomials N Karcanias, M Mitrouli IEEE Transactions on Automatic Control 39 (5), 977-981, 1994 | 65 | 1994 |

Necessary and sufficient conditions for zero assignment by constant squaring down N Karcanias, C Giannakopoulos Linear Algebra and its applications 122, 415-446, 1989 | 54 | 1989 |

Structure evolving systems and control in integrated design N Karcanias Annual reviews in Control 32 (2), 161-182, 2008 | 52 | 2008 |

Computation of the GCD of polynomials using Gaussian transformations and shifting M MITROULI, N KARCANIAS International Journal of Control 58 (1), 211-228, 1993 | 52 | 1993 |

Approximate greatest common divisor of many polynomials, generalised resultants, and strength of approximation N Karcanias, S Fatouros, M Mitrouli, GH Halikias Computers & Mathematics with Applications 51 (12), 1817-1830, 2006 | 50 | 2006 |

Matrix pencil approach to geometric system theory N Karcanias Proceedings of the institution of electrical engineers 126 (6), 585-590, 1979 | 50 | 1979 |

Global process instrumentation—issues and problems of a system and control theory framework N Karcanias Measurement 14 (1), 103-113, 1994 | 49 | 1994 |

Decentralized determinantal assignment problem: fixed and almost fixed modes and zeros N Karcanias, B Laios, C Giannakopoulos International Journal of Control 48 (1), 129-147, 1988 | 48 | 1988 |

Vortex formation and recirculation zones in left anterior descending artery stenoses: computational fluid dynamics analysis DG Katritsis, A Theodorakakos, I Pantos, A Andriotis, EP Efstathopoulos, ... Physics in Medicine & Biology 55 (5), 1395, 2010 | 47 | 2010 |

Geometric theory and feedback invariants of generalized linear systems: a matrix pencil approach N Karcanias, G Kalogeropoulos Circuits, Systems and Signal Processing 8, 375-397, 1989 | 42 | 1989 |