Über einen Dualitätssatz der nichtlinearen Programmierung.
On the Characterization of Least Upper Bound Norms in Matrix Space.
Duality in Nonlinear Programming and the Minimax Theorem.
Über zwei Algorithmen zur Interpolation mit rationalen Funktionen.
On the Relation between Quadratic Termination and Convergence Properties of Minimization Algorithms. Part I. Theory.
Lower Bounds of Matrices.
Handbook Series Numerical Integration. Numerical Quadrature by Extrapolation.
Fehlerabschätzungen und Extrapolation mit rationalen Funktionen bei Verfahren vom Richardson-Typus.
Transformations by Diagonal Matrices in a Normed Space.
Handbook Series Methods of Approximation. Rational Chebyshev Approximation Using Interpolation.
Numerical Treatment of Ordinary Differential Equations by Extrapolation Methods.
A Factorization Method for the Solution of Constrained Linear Least Squares Problems Allowing Subsequent Data Changes.
Zur rationalen Tschebyscheff-Approximation differenzierbarer und analytischer Funktionen.
Asymptotic Upper and Lower Bounds for Results of Extrapolation Methods.
Handbook Series Methods of Approximation. Correction to Rational Chebyshev Approximation Using Interpolation.
On the Relation between Quadratic Termination and Convergence Properties of Minimization Algorithms. Part II. Applications.
Methods for solving semidefinite linear complementarity problems
Handbook Series Methods of Approximation. Rational Chebyshev Approximation.
Absolute and monotonie norms.
A rank-one updating approach for solving systems of linear equations in the least squares sense.
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