Superfast solution of real positive definite Toeplitz systems GS Ammar, WB Gragg SIAM Journal on Matrix Analysis and Applications 9 (1), 61-76, 1988 | 390 | 1988 |

The generalized Schur algorithm for the superfast solution of Toeplitz systems GS Ammar, WB Gragg Rational Approximation and its Applications in Mathematics and Physics …, 1987 | 110 | 1987 |

Discrete least squares approximation by trigonometric polynomials L Reichel, GS Ammar, WB Gragg Mathematics of Computation 57 (195), 273-289, 1991 | 104 | 1991 |

Constructing a unitary Hessenberg matrix from spectral data G Ammar, W Gragg, L Reichel Numerical linear algebra, digital signal processing and parallel algorithms …, 1991 | 98 | 1991 |

On Hamiltonian and symplectic Hessenberg forms G Ammar, V Mehrmann Linear algebra and its applications 149, 55-72, 1991 | 96 | 1991 |

On the eigenproblem for orthogonal matrices GS Ammar, WB Gragg, L Reichel 1986 25th IEEE Conference on Decision and Control, 1963-1966, 1986 | 89 | 1986 |

A multishift algorithm for the numerical solution of algebraic Riccati equations GS Ammar, P Benner, V Mehrmann Electr. Trans. Num. Anal 1, 33-48, 1993 | 87 | 1993 |

The geometry of matrix eigenvalue methods G Ammar, C Martin Acta Applicandae Mathematica 5 (3), 239-278, 1986 | 72 | 1986 |

A variant of the Gohberg–Semencul formula involving circulant matrices G Ammar, P Gader SIAM Journal on Matrix Analysis and Applications 12 (3), 534-540, 1991 | 69 | 1991 |

Exponential interpolation: theory and numerical algorithms G Ammar, W Dayawansa, C Martin Applied Mathematics and Computation 41 (3), 189-232, 1991 | 61 | 1991 |

Numerical experience with a superfast real Toeplitz solver GS Ammar, WB Gragg Linear Algebra and its Applications 121, 185-206, 1989 | 59 | 1989 |

An implementation of a divide and conquer algorithm for the unitary eigen problem GS Ammar, L Reichel, DC Sorensen ACM Transactions on Mathematical Software (TOMS) 18 (3), 292-307, 1992 | 57 | 1992 |

New decompositions of the inverse of a Toeplitz matrix G Ammar, P Gader Signal Processing, Scattering and Operator Theory, and Numerical Methods …, 1990 | 49 | 1990 |

On an inverse eigenvalue problem for unitary Hessenberg matrices GS Ammar, C He Linear algebra and its applications 218, 263-271, 1995 | 44 | 1995 |

Determination of Pisarenko frequency estimates as eigenvalues of an orthogonal matrix GS Ammar, WB Gragg, L Reichel Advanced Algorithms and Architectures for Signal Processing II 826, 143-145, 1988 | 42 | 1988 |

Schur flows for orthogonal Hessenberg matrices GS Ammar, WB Gragg Universität Bielefeld. SFB 343. Diskrete Strukturen in der Mathematik, 1992 | 40 | 1992 |

Implementation and use of the generalized Schur algorithm GS Ammar, WB Gragg Computational and Combinatorial Methods in Systems Theory, 265-279, 1986 | 35 | 1986 |

Downdating of Szego polynomials and data-fitting applications GS Ammar, WB Gragg, L Reichel Linear Algebra and its Applications 172, 315-336, 1992 | 31 | 1992 |

Schur-like forms for matrix Lie groups, Lie algebras and Jordan algebras G Ammar, C Mehl, V Mehrmann Linear algebra and its applications 287 (1-3), 11-39, 1999 | 30 | 1999 |

Computation of Gauss-Kronrod quadrature rules with non-positive weights GS Ammar, D Calvetti, L Reichel Electronic Transactions on Numerical Analysis 9, 26-38, 1999 | 30 | 1999 |