INS Preprints of this group
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2022
A note on source term representation for control-and-state-constrained parabolic control problems with purely time-dependent control.
I. Neitzel.
Technical Report, Institute for Numerical Simulation, Bonn University, 2022.
Submitted. Available as INS Preprint No. 2206.
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Sparse optimal control of a quasilinear elliptic PDE in measure spaces.
F. Hoppe.
Submitted. Available as INS Preprint No. 2202, 2022.
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Purely time-dependent optimal control of quasilinear parabolic PDEs with sparsity enforcing penalization.
F. Hoppe and I. Neitzel.
ESAIM: COCV, 2022.
also available as INS Preprint No. 2201.
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2020
A-posteriori reduced basis error-estimates for a semi-discrete in space quasilinear parabolic PDE.
F. Hoppe and I. Neitzel.
Comput. Optim. Appl., 2021.
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Optimal Control of Quasilinear Parabolic PDEs with State-Constraints.
F. Hoppe and I. Neitzel.
SIAM J. Control Optim., 60(1):330–354, 2022.
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2019
Convergence of the SQP method for quasilinear parabolic optimal control problems.
F. Hoppe and I. Neitzel.
Optim. Eng., 2020.
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2017
Tangent and normal cones for low-rank matrices.
S. Hosseini, D. R. Luke, and A. Uschmajew.
INS Preprint No. 1715, oct 2017.
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A collection of nonsmooth Riemannian optimization problems.
P.-A. Absil and S. Hosseini.
INS Preprint No. 1713, sep 2017.
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Second order optimality conditions for optimal control of quasilinear parabolic pdes.
L. Bonifacius and I. Neitzel.
Mathematical Control and Related Fields, 8(1):1–34, 2018.
Preprint version available as INS Preprint No. 1705.
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2016
Line search algorithms for locally Lipschitz functions on Riemannian manifolds.
S. Hosseini, W. Huang, and R. Yousefpour.
INS Preprint No. 1626. Revised version, August 2017, nov 2016.
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A gradient sampling method on algebraic varieties and application to nonsmooth low-rank optimization.
S. Hosseini and A. Uschmajew.
INS Preprint No. 1624. Extended and revised version, March 2017, oct 2016.
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A-posteriori error estimation of discrete pod models for pde-constrained optimal control.
M. Gubisch, I. Neitzel, and S. Volkwein.
In Model reduction and approximation: theory and algorithms, volume of Computational Science and Engineering, pages.
SIAM.
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A priori l2-discretization error estimates for the state in elliptic optimization problems with pointwise inequality state constraints.
I. Neitzel and W. Wollner.
Numer. Math., 2017.
also available as INS Preprint No. 1606.
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A priori error estimates for state constrained semilinear parabolic optimal control problems.
F. Ludovici, I. Neitzel, and W. Wollner.
J. Optim. Theory Appl., 178(2):317–348, 2018.
also available as INS Preprint No. 1605.
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2015
Convergence of nonsmooth descent methods via Kurdyka–Łojasiewicz inequality on Riemannian manifolds.
S. Hosseini.
INS Preprint No. 1523. Revised version, July 2017, nov 2015.
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