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ORCIDEkkehard W. Sachs
Person information
- affiliation: University of Trier, Department of Mathematics, Germany
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2020 – today
- 2021
[j26]Geovani Nunes Grapiglia
, Ekkehard W. Sachs:
A generalized worst-case complexity analysis for non-monotone line searches. Numer. Algorithms 87(2): 779-796 (2021)
2010 – 2019
- 2017
- [j25]Geovani Nunes Grapiglia, Ekkehard W. Sachs:
On the worst-case evaluation complexity of non-monotone line search algorithms. Comput. Optim. Appl. 68(3): 555-577 (2017) - 2015
- [j24]Roland Herzog, Ekkehard W. Sachs:
Superlinear Convergence of Krylov Subspace Methods for Self-Adjoint Problems in Hilbert Space. SIAM J. Numer. Anal. 53(3): 1304-1324 (2015) - 2013
- [p1]Ekkehard W. Sachs, Matthias Schu:
Gradient Computation for Model Calibration with Pointwise Observations. Control and Optimization with PDE Constraints 2013: 117-136 - 2012
- [j23]F. Gerlich, A. M. Giese, Jan H. Maruhn, Ekkehard W. Sachs:
Parameter identification in financial market models with a feasible point SQP algorithm. Comput. Optim. Appl. 51(3): 1137-1161 (2012) - [j22]Ralf T. Münnich, Ekkehard W. Sachs, Matthias Wagner:
Calibration of estimator-weights via semismooth Newton method. J. Glob. Optim. 52(3): 471-485 (2012) - 2010
- [j21]Roland Herzog, Ekkehard W. Sachs:
Preconditioned Conjugate Gradient Method for Optimal Control Problems with Control and State Constraints. SIAM J. Matrix Anal. Appl. 31(5): 2291-2317 (2010)
2000 – 2009
- 2009
- [j20]Christoph Käbe, Jan H. Maruhn, Ekkehard W. Sachs:
Adjoint-based Monte Carlo calibration of financial market models. Finance Stochastics 13(3): 351-379 (2009) - [j19]Jan H. Maruhn, Ekkehard W. Sachs:
Robust static hedging of barrier options in stochastic volatility models. Math. Methods Oper. Res. 70(3): 405-433 (2009) - [j18]F. Feitzinger, T. Hylla, Ekkehard W. Sachs:
Inexact Kleinman-Newton Method for Riccati Equations. SIAM J. Matrix Anal. Appl. 31(2): 272-288 (2009) - 2008
- [j17]John A. Burns, Ekkehard W. Sachs, Lizette Zietsman:
Mesh Independence of Kleinman--Newton Iterations for Riccati Equations in Hilbert Space. SIAM J. Control. Optim. 47(5): 2663-2692 (2008) - 2006
- [c2]John A. Burns, Ekkehard W. Sachs, Lizette Zietsman:
Approximations and Mesh Independence for LQR Optimal Control. CDC 2006: 81-86 - 2003
- [e1]Ekkehard W. Sachs, Rainer Tichatschke:
System Modelling and Optimization XX, IFIP TC7 20th Conference on System Modelling and Optimization, July 23-27, 2001, Trier, Germany. IFIP Conference Proceedings 258, Kluwer 2003, ISBN 1-4020-7565-0 [contents] - 2002
- [j16]Ekkehard W. Sachs, Stefan Volkwein:
Augmented Lagrange-SQP Methods with Lipschitz-Continuous Lagrange Multiplier Updates. SIAM J. Numer. Anal. 40(1): 233-253 (2002) - [c1]Eyal Arian, Marco Fahl, Ekkehard W. Sachs:
Managing POD models by optimization methods. CDC 2002: 3300-3305 - 2000
- [j15]Belinda B. King, Ekkehard W. Sachs:
Semidefinite Programming Techniques for Reduced Order Systems with Guaranteed Stability Margins. Comput. Optim. Appl. 17(1): 37-59 (2000) - [j14]D. Kleis, Ekkehard W. Sachs:
Optimal Control of the Sterilization of Prepackaged Food. SIAM J. Optim. 10(4): 1180-1195 (2000) - [i8]El-Sayed M. E. Mostafa, Ekkehard W. Sachs:
A Lagrangian Method for Solving the Optimal Output Feedback Design Problem. Universität Trier, Mathematik/Informatik, Forschungsbericht 00-02 (2000) - [i7]A. Battermann, Ekkehard W. Sachs:
An Indefinite Preconditioner for KKT Systems Arising in Optimal Control Problems. Universität Trier, Mathematik/Informatik, Forschungsbericht 00-10 (2000)
1990 – 1999
- 1999
- [j13]Friedemann Leibfritz, Ekkehard W. Sachs:
Inexact SQP Interior Point Methods and Large Scale Optimal Control Problems. SIAM J. Control. Optim. 38(1): 272-293 (1999) - [j12]Carl T. Kelley, Ekkehard W. Sachs:
A Trust Region Method for Parabolic Boundary Control Problems. SIAM J. Optim. 9(4): 1064-1081 (1999) - [i6]Eyal Arian, A. Battermann, Ekkehard W. Sachs:
Approximation of the Newton Step by a Defect Correction Process. Universität Trier, Mathematik/Informatik, Forschungsbericht 99-12 (1999) - 1998
- [j11]C. T. Kelley, Ekkehard W. Sachs:
Local Convergence of the Symmetric Rank-One Iteration. Comput. Optim. Appl. 9(1): 43-63 (1998) - 1997
- [j10]Tankred Rautert, Ekkehard W. Sachs:
Computational Design of Optimal Output Feedback Controllers. SIAM J. Optim. 7(3): 837-852 (1997) - 1996
- [i5]Friedemann Leibfritz, Ekkehard W. Sachs:
Inexact SQP Interior Point Methods and Large Scale Optimal Control Problems. Universität Trier, Mathematik/Informatik, Forschungsbericht 96-09 (1996) - 1995
- [j9]S. Ito, Carl T. Kelley, Ekkehard W. Sachs:
Inexact primal-dual interior point iteration for linear programs in function spaces. Comput. Optim. Appl. 4(3): 189-201 (1995) - [j8]Günther Gramlich, Rainer Hettich, Ekkehard W. Sachs:
Local Convergence of SQP Methods in Semi-Infinite Programming. SIAM J. Optim. 5(3): 641-658 (1995) - [i4]C. T. Kelley, Ekkehard W. Sachs:
Local Convergence of the Symmetric Rank-One Iteration. Universität Trier, Mathematik/Informatik, Forschungsbericht 95-07 (1995) - [i3]Tankred Rautert, Ekkehard W. Sachs:
Computational Design of Optimal Output Feedback Controllers. Universität Trier, Mathematik/Informatik, Forschungsbericht 95-12 (1995) - [i2]D. Kleis, Ekkehard W. Sachs:
Convergence Rate of the Augmented Lagrangian SQP Method. Universität Trier, Mathematik/Informatik, Forschungsbericht 95-19 (1995) - [i1]Heidi Jäger, Ekkehard W. Sachs:
Global Convergence of Inexact Reduced SQP Methods. Universität Trier, Mathematik/Informatik, Forschungsbericht 95-20 (1995) - 1994
- [j7]C. T. Kelley, Ekkehard W. Sachs:
Multilevel Algorithms for Constrained Compact Fixed Point Problems. SIAM J. Sci. Comput. 15(3): 645-667 (1994) - 1993
- [j6]Carl T. Kelley, Ekkehard W. Sachs:
Pointwise Broyden Methods. SIAM J. Optim. 3(2): 423-441 (1993) - 1992
- [j5]F.-S. Kupfer, Ekkehard W. Sachs:
Numerical solution of a nonlinear parabolic control problem by a reduced SQP method. Comput. Optim. Appl. 1(1): 113-135 (1992) - 1991
- [j4]Carl T. Kelley, Ekkehard W. Sachs:
A New Proof of Superlinear Convergence for Broyden's Method in Hilbert Space. SIAM J. Optim. 1(1): 146-150 (1991) - [j3]Carl T. Kelley, Ekkehard W. Sachs:
Fast Algorithms for Compact Fixed Point Problems with Inexact Function Evaluations. SIAM J. Sci. Comput. 12(4): 725-742 (1991) - 1990
- [j2]C. T. Kelley, Ekkehard W. Sachs:
Approximate Quasi-Newton Methods. Math. Program. 48: 41-70 (1990)
1980 – 1989
- 1986
- [j1]Ekkehard W. Sachs:
Broyden's method in Hilbert space. Math. Program. 35(1): 71-82 (1986)
Coauthor Index
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