In S.C. Brenner, W. Chung, A. Klawonn, F. Kwok, J., Xu and J. Zou (eds): Domain Decomposition Methods in Science and Engineering XXVI, p. 555 – 562, 2023.
In S.C. Brenner, W. Chung, A. Klawonn, F. Kwok, J., Xu and J. Zou (eds): Domain Decomposition Methods in Science and Engineering XXVI, p. 532 – 530, 2023.
In I. Lirkov and S. Margenov (eds.): Large-Scale Scientific Computing, 13th International Conference, LSSC 2021, Sozopol, Bulgaria, June 7–11, 2021 Revised Selected Papers, p. 314 – 321, 2022.
U. Langer, A. Schafelner, O. Steinbach, F. Tröltzsch, and H. Yang.
Adaptive Space-Time Finite Element Methods for Parabolic Optimal Control Problems.
In S. Larsson, R. Nochetto, S. Sauter, C. Wieners (ed.): Report No. 06/2022 on the Workshop on ''Space-Time Methods for Time-Dependent Partial Differential Equations'', 6 – 12 Februray 2022, Oberwolfach, Germany, 2022.
U. Langer, O. Steinbach, F. Tröltzsch, and H. Yang.
Unstructured Space-Time Finite Element Methods for Optimal Sparse Control of Parabolic Equations.
In R. Herzog, M. Heinkenschloss, D. Kalise, G. Stadler, E. Trélat (ed.): Optimization and Control for PDEs, p. 167 – 188, 2022.
U. Langer, O. Steinbach, and H. Yang.
Robust discretization and solvers for elliptic optimal control problems with energy regularization.
Dual-Primal Isogeometric Tearing and Interconnecting Methods.
In B.N. Chetverushkin, W. Fitzgibbon, Y.A. Kuznetsov, P. Neittanmakki, J. Periaux, and O. Piroeau (eds.): Contributions to Partial Differential Equations and Applications, p. 273 – 296, 2019.
C. Hofer, U. Langer, M. Neumüller, and R. Schneckenleitner.
Parallel and Robust Preconditioning for Space-Time Isogeometric Analysis of Parabolic Evolution Problems.
SIAM Journal on Scientific Computing, vol. 41 (3), p. A1793 – A1821, 2019.
In P. E. Bjørstad, S. C. Brenner, L. Halpern, R. Kornhuber, H. H. Kim, T. Rahman, and O. B. Widlund (eds.): Domain Decomposition Methods in Science and Engineering XXIV, p. 397 – 406, 2019.
In A. Buffa, T. Hughes, A. Kunoth, C. Manni (ed.): Report No. 33 /2019 on the Workshop on ''Mathematical Foundations of Isogeometric Analysis'', 14 – 20 July 2019, Oberwolfach, Germany, p. 1981 – 2032, 2019.
S. Kyas, U. Langer, and S. Repin.
Space-Time Isogeometric Analysis of Parabolic Diffusion Problems in Moving Spatial Domains.
PAMM, vol. 19 (1), p. e201900504, 2019.
U. Langer, S. Matculevich, and S. Repin.
Adaptive space–time Isogeometric Analysis for parabolic evolution problems.
In U. Langer and O. Steinbach (eds.): Space–Time Methods: Applications to Partial Differential Equations, p. 155 – 200, 2019.
U. Langer, S. Matculevich, and S. Repin.
Guaranteed error bounds and local indicators for adaptive solvers using stabilised space-time IgA approximations to parabolic problems.
Computers and Mathematics with Applications, vol. 78, p. 2641 – 2671, 2019.
U. Langer, M. Neumüller, and A. Schafelner.
Space-time Finite Element Methods for Parabolic Evolution Problems with Variable Coefficients.
In T. Apel, U. Langer, A. Meyer, and O. Steinbach (eds.): Advanced Finite Element Methods with Applications - Selected Papers from the 30th Chemnitz Finite Element Symposium 2017, p. 229 – 256, 2019.
U. Langer and A. Schafelner.
Adaptive space-time finite element solvers for parabolic initial-boundary value problems with non-smooth solutions.
A Local Mesh Modification Strategy for Interface Problems with Application to Shape and Topology Optimization.
In U. Langer, W. Amrhein, and W. Zulehner (eds.): Scientific Computing in Electrical Engineering, SCEE 2016, St. Wolfgang, Austria, October 2016, p. 147 – 155, 2018.
C. Hofer, U. Langer, M. Neumüller, and I. Toulopoulos.
Time-Multipatch Discontinuous Galerkin Space-Time Isogeometric Analysis of Parabolic Evolution Problems.
Electronic Transactions on Numerical Analysis, vol. 49, p. 126 – 150, 2018.