Artikel

Brenner, S. C. ; Sung, L.-Y. ; Wollner, W. (2020)
A One Dimensional Elliptic Distributed Optimal Control Problem with Pointwise Derivative Constraints.
In: Numerical Functional Analysis and Optimization, 41 (13)
doi: 10.1080/01630563.2020.1785495
Artikel, Bibliographie

Wick, T. ; Wollner, W. (2020)
Optimization with nonstationary, nonlinear monolithic fluid-structure interaction.
In: International Journal for Numerical Methods in Engineering
doi: 10.1002/nme.6372
Artikel, Bibliographie

Brenner, S. C. ; Sung, L.-Y. ; Wollner, W. (2020)
Finite element methods for one dimensional elliptic distributed optimal control problems with pointwise constraints on the derivative of the state.
In: Optimization and Engineering
doi: 10.1007/s11081-020-09491-1
Artikel, Bibliographie

Endtmayer, B. ; Langer, U. ; Neitzel, I. ; Wick, T. ; Wollner, W. (2020)
Multigoal-oriented optimal control problems with nonlinear PDE constraints.
In: Computers & Mathematics with Applications, 79 (10)
doi: 10.1016/j.camwa.2020.01.005
Artikel, Bibliographie

Geiersbach, C. ; Wollner, W. (2020)
A Stochastic Gradient Method with Mesh Refinement for PDE Constrained Optimization under Uncertainty.
In: SIAM Journal on Scientific Computing, 42 (5)
doi: 10.1137/19M1263297
Artikel, Bibliographie

Gaspoz, F. ; Kreuzer, C. ; Veeser, A. ; Wollner, W. (2019)
Quasi-best approximation in optimization with PDE constraints.
In: Inverse Problems, 36 (1)
doi: 10.1088/1361-6420/ab47f3
Artikel, Bibliographie

Schmidt, M. ; Sirvent, M. ; Wollner, W. (2019)
A Decomposition Method for MINLPs with Lipschitz Continuous Nonlinearities.
In: Mathematical Programming, 178 (1-2)
doi: 10.1007/s10107-018-1309-x
Artikel, Bibliographie

Beckers, S. ; Behrens, J. ; Wollner, W. (2019)
Duality based error estimation in the presence of discontinuities.
In: Applied Numerical Mathemathics, 144
doi: 10.1016/j.apnum.2019.05.016
Artikel, Bibliographie

Wick, T. ; Wollner, W. (2019)
On the Differentiability of Stationary Fluid-Structure Interaction Problems with Respect to the Problem Data.
In: Journal of Mathematical Fluid Mechanics, 21 (3)
doi: 10.1007/s00021-019-0439-0
Artikel, Bibliographie

Haller-Dintelmann, R. ; Meinlschmidt, H. ; Wollner, W. (2019)
Higher regularity for solutions to elliptic systems in divergence form subject to mixed boundary conditions.
In: Annali di Matematica Pura ed Applicata, 198 (4)
doi: 10.1007/s10231-018-0818-9
Artikel, Bibliographie

Wollner, W. (2018)
Optimization of phase-field damage and fracture - and its discretization.
In: Oberwolfach Reports, 15 (4)
doi: 10.4171/OWR/2018/55
Artikel, Bibliographie

Herzog, R. ; Wollner, W. (2017)
A Conjugate Direction Method for Linear Systems in Banach Spaces.
In: Journal of Inverse and Ill-posed Problems, 25 (5)
doi: 10.1515/jiip-2016-0027
Artikel, Bibliographie

Goll, C. ; Wick, T. ; Wollner, W. (2017)
DOpElib: Differential Equations and Optimization Environment; A Goal Oriented Software Library for Solving PDEs and Optimization Problems with PDEs.
In: Archive of Numerical Software, 5 (2)
doi: 10.11588/ans.2017.2.11815
Artikel, Bibliographie

Linke, A. ; Merdon, C. ; Wollner, W. (2017)
Optimal L² Velocity Error Estimates for a Modified Pressure-Robust Crouzeix-Raviart Stokes Element.
In: IMA Journal of Numerical Analysis, 37 (1)
doi: 10.1093/imanum/drw019
Artikel, Bibliographie

Neitzel, I. ; Wick, T. ; Wollner, W. (2017)
An Optimal Control Problem Governed by a Regularized Phase-Field Fracture Propagation Model.
In: SIAM Journal on Control and Optimization, 55 (4)
doi: 10.1137/16M1062375
Artikel, Bibliographie

Meyer, Ch. ; Rademacher, A. ; Wollner, W. (2015)
Adaptive optimal control of the obstacle problem.
In: SIAM Journal on Scientific Computing, 37 (2)
doi: 10.1137/140975863
Artikel, Bibliographie

Gasser, I. ; Rybicki, M. ; Wollner, W. (2014)
Optimal Control of the Temperature in a Catalytic Converter.
In: Computers & Mathematics with Applications, 67 (8)
doi: 10.1016/j.camwa.2014.02.006
Artikel, Bibliographie

Wheeler, M. F. ; Wick, T. ; Wollner, W. (2014)
An Augmented-Lagrangian Method for the Phase-Field Approach for Pressurized Fractures.
In: Computer Methods in Applied Mechanics and Engineering, 271 (1)
doi: 10.1016/j.cma.2013.12.005
Artikel, Bibliographie

Wollner, W. (2007)
Adaptive Finite Element Methods for Optimal Control Problems with Control Constraints.
In: Oberwolfach Reports, 4 (3)
Artikel, Bibliographie