Homepage von R. Löscher

Institut für Angewandte Mathematik (Math D)

Dipl.-Ing. Dr. techn. Richard Löscher

Lehrveranstaltungen (Assistent)

Technische Numerik (Vorlesung)

Mathematische Modelle für Digital Engineering (Vorlesungsübung)

Space-Time methods (Übungen, TU Graz, Prof. Steinbach)

Partielle Differentialgleichungen (Übungen, TU Graz, Prof. Steinbach)

Mathematische Modelle für Digital Engineering (Vorlesungsübung, TU Graz, Prof. Steinbach)

Boundary Integral Operators (Übungen, TU Graz, Prof. Steinbach)

Gewöhnliche Differentialgleichungen (Übungen, TU Graz, Prof. Steinbach)

Mathematische Modelle für Digital Engineering (Übungen, TU Graz, Prof. Steinbach)

Space-Time methods (Übungen, TU Graz, Prof. Steinbach)

Numerik gewöhlicher Differentialgleichungen (Übungen, TU Darmstadt, Prof. Lang)

Tutorium: Mathematik I für Informatik (Übungen, TU Darmstadt)

Computational Fluid Dynamics (Übungen, TU Darmstadt, Prof. Egger)

Mathematik III für ET (Übungen, TU Darmstadt, Prof. Farwig)

Wissenschaftliche Interessen

Institut für Angewandte Mathematik (Math D)
Dipl.-Ing. Dr. techn. Richard Löscher

Lehrveranstaltungen (Assistent)
WS 2024/25: Technische Numerik (Vorlesung) Mathematische Modelle für Digital Engineering (Vorlesungsübung) SS 2024: Space-Time methods (Übungen, TU Graz, Prof. Steinbach) WS 2023/24: Partielle Differentialgleichungen (Übungen, TU Graz, Prof. Steinbach) Mathematische Modelle für Digital Engineering (Vorlesungsübung, TU Graz, Prof. Steinbach) SS 2023: Boundary Integral Operators (Übungen, TU Graz, Prof. Steinbach) WS 2022/23: Gewöhnliche Differentialgleichungen (Übungen, TU Graz, Prof. Steinbach) Mathematische Modelle für Digital Engineering (Übungen, TU Graz, Prof. Steinbach) SS 2022: Space-Time methods (Übungen, TU Graz, Prof. Steinbach) WS 2021/22: Numerik gewöhlicher Differentialgleichungen (Übungen, TU Darmstadt, Prof. Lang) SS 2021: Tutorium: Mathematik I für Informatik (Übungen, TU Darmstadt) Computational Fluid Dynamics (Übungen, TU Darmstadt, Prof. Egger) WS 2020/21: Mathematik III für ET (Übungen, TU Darmstadt, Prof. Farwig)
Wissenschaftliche Interessen
Numerische Analysis für PDEs Space-Time FEM
Veröffentlichungen
Langer, U; Löscher, R.; Steinbach, O.; Yang, H.: Robust finite element solvers for distributed hyperbolic optimal control problems (2024), CAMWA Löscher, R.; Reichelt, M.; Steinbach, O.: Efficient Solution of State-Constrained Distributed Parabolic Optimal Control Problems (2024), arxiv Löscher, R.; Steinbach, O.; Zank, M.: On a modified Hilbert transformation, the discrete inf-sup condition, and error estimates (2024), CAMWA DOI Löscher, R.; Reichelt, M.; Steinbach, O.: Optimal complexity solution of space-time finite element systems for state-based parabolic distributed optimal control problems (2024), arxiv Langer, U.; Löscher, R.; Steinbach, O.; Yang, H.: Parallel iterative solvers for discretized reduced optimality systems (2023), arxiv Hoonhout, D.; Löscher, R.; Steinbach, O.; Urzua-Torres, C.: Stable least-squares space-time boundary element methods for the wave equation (2023), arxiv Egger, H.; Kurz, S.; Löscher, R.: On the exponential stability of uniformly damped wave problems (2023), RINAM Köthe, C.; Löscher, R.; Steinbach, O.: Adaptive least-squares space-time finite element methods (2023), arxiv Gangl, P.; Löscher, R.; Steinbach, O.: Regularization and finite element error estimates for elliptic distributed optimal control problems with energy regularization and state or control constraints (2024), CAMWA DOI Langer, U.; Löscher, R.; Steinbach, O.; Yang, H.: Mass-lumping discretization and solvers for distributed elliptic optimal control problems (2023), NLA DOI Langer, U.; Löscher, R.; Steinbach, O.; Yang, H.: Robust iterative solvers for algebraic systems arising from elliptic optimal control problems (2023), LSSC 2023 URL Löscher, R.; Steinbach, O.: Space-time finite element methods for distributed optimal control of the wave equation, SINUM (2023), DOI Langer, U.; Löscher, R.; Steinbach, O.; Yang, H.: An adaptive finite element method for distributed elliptic optimal control problems with variable energy regularization (2022), CAMWA DOI Langer, U.; Löscher, R.; Steinbach, O.; Yang, H.: Robust finite element discretization and solvers for distributed elliptic optimal control problems, CMAM (2022), DOI Egger, H.; Harutyunyan, M.; Löscher, R.; Merkel, M.; Schöps, S.: On torque computation in electric machine simulation by harmonic mortar methods, J. Math. Ind. (2022) 12, URL Löscher, R.; Steinbach, O.; Zank, M.: Numerical results for an unconditionally stable space-time finite element method for the wave equation (2022), Domain Decomposition Methods in Science and Engineering XXVI, p. 625--632, ISBN: 978-3-030-95025-5
Vorträge
2025 Stable and Adaptive Finite Element Methods for the Wave Equation, Seminar für Numerische Mathematik (Delft), 15.-17. Jänner 2024 Space-Time Finite Element Methods: Foundations and Applications, Seminar: Numerical Simulations in Technical Sciences (Graz), 30. Oktober A space-time reduced basis method for the wave equation, BEM Workshop (Kleinwalsertal), 26.-29. September A unified finite element approach for PDE constrained optimal control problems and Space-time FEM for distributed optimal control problems subject to the wave equation with state or control constraints, Chemnitz FEM Symposium (Chemnitz), 9.-11. September Forschungsaufenthalt, Gast bei C. Urzua-Torres (Delft), 15.-27. Juli Stable and Adaptive Finite Element Methods for the Wave Equation, WAVES 2024 (Berlin), 1.-5. Juli On a space-time reduced basis method for the wave equation, Gruppentreffen - Gast bei K. Urban (Ulm), 27.-28. Juni Stable and Adaptive Finite Element Methods for the Wave Equation, Gruppentreffen - Gast bei H. Egger (Linz), 3.-4. April 2023 Adaptive finite element methods for distributed optimal control problems with state or control constraints, Workshop (Graz), 30. November Adaptive finite element methods for distributed optimal control problems with state constraints, Seminar - Gast bei H. Egger (Linz), 6.-7. November On some properties of the modified Hilbert transformation, BEM Workshop (Kleinwalsertal), 1.-4. Oktober Unconditionally Stable Space-Time (Adaptive) Finite Element Methods for the Wave Equation, USNCCM17 (Albuquerque, New Mexico), 23.-27. Juli Forschungsaufenthalt, Gast bei C. Urzua-Torres (Delft), 2.-15. Juli Adaptive (space-time) FEM for distributed optimal control problems, ANA Days (Wien), 27.-28. April 2022 Adaptive space-time FEM for distributed optimal control problems subject to the wave equation, Oberseminar - Gast bei S. Volkwein (Konstanz), 5.-8. Dezember Adaptive space-time FEM for the wave equation, Space-Time Workshop (Graz), 21. November Numerical illustration of an abstract setting for distributed optimal control problems, Analysis and Numerics of Optimal Control problems - Workshop (Graz), 19. Oktober Adaptive FEM for distributed optimal control problems subject to the wave equation with variable energy regularization, BEM Workshop (Kleinwalsertal), 13.-16. Oktober Adaptive FEM for distributed optimal control problems subject to the wave equation with variable energy regularization, Chemnitz FEM Symposium (Herrsching), 15.-17. September Space-time FEM for optimal control problems (Poster), Summer School "DD for Optimal control problems" (CIRM-Marseille), 5.-9. September Towards unconditionally stable space-time FEM for the wave equation, ANA Days (Linz), 4.-6. Mai 2021 A generalized approach to mass lumping using Hilbert complexes, AG Seminar - AG Numerik und Wiss. Rechnen TU Darmstadt (Darmstadt), 26. Oktober

Stable and Adaptive Finite Element Methods for the Wave Equation, Seminar für Numerische Mathematik (Delft), 15.-17. Jänner

Space-Time Finite Element Methods: Foundations and Applications, Seminar: Numerical Simulations in Technical Sciences (Graz), 30. Oktober

A space-time reduced basis method for the wave equation, BEM Workshop (Kleinwalsertal), 26.-29. September

A unified finite element approach for PDE constrained optimal control problems and Space-time FEM for distributed optimal control problems subject to the wave equation with state or control constraints, Chemnitz FEM Symposium (Chemnitz), 9.-11. September

Forschungsaufenthalt, Gast bei C. Urzua-Torres (Delft), 15.-27. Juli

Stable and Adaptive Finite Element Methods for the Wave Equation, WAVES 2024 (Berlin), 1.-5. Juli

On a space-time reduced basis method for the wave equation, Gruppentreffen - Gast bei K. Urban (Ulm), 27.-28. Juni

Stable and Adaptive Finite Element Methods for the Wave Equation, Gruppentreffen - Gast bei H. Egger (Linz), 3.-4. April

Adaptive finite element methods for distributed optimal control problems with state or control constraints, Workshop (Graz), 30. November

Adaptive finite element methods for distributed optimal control problems with state constraints, Seminar - Gast bei H. Egger (Linz), 6.-7. November

On some properties of the modified Hilbert transformation, BEM Workshop (Kleinwalsertal), 1.-4. Oktober

Unconditionally Stable Space-Time (Adaptive) Finite Element Methods for the Wave Equation, USNCCM17 (Albuquerque, New Mexico), 23.-27. Juli

Forschungsaufenthalt, Gast bei C. Urzua-Torres (Delft), 2.-15. Juli

Adaptive (space-time) FEM for distributed optimal control problems, ANA Days (Wien), 27.-28. April

Adaptive space-time FEM for distributed optimal control problems subject to the wave equation, Oberseminar - Gast bei S. Volkwein (Konstanz), 5.-8. Dezember

Adaptive space-time FEM for the wave equation, Space-Time Workshop (Graz), 21. November

Numerical illustration of an abstract setting for distributed optimal control problems, Analysis and Numerics of Optimal Control problems - Workshop (Graz), 19. Oktober

Adaptive FEM for distributed optimal control problems subject to the wave equation with variable energy regularization, BEM Workshop (Kleinwalsertal), 13.-16. Oktober

Adaptive FEM for distributed optimal control problems subject to the wave equation with variable energy regularization, Chemnitz FEM Symposium (Herrsching), 15.-17. September

Space-time FEM for optimal control problems (Poster), Summer School "DD for Optimal control problems" (CIRM-Marseille), 5.-9. September

Towards unconditionally stable space-time FEM for the wave equation, ANA Days (Linz), 4.-6. Mai

A generalized approach to mass lumping using Hilbert complexes, AG Seminar - AG Numerik und Wiss. Rechnen TU Darmstadt (Darmstadt), 26. Oktober

Anschrift	Technische Universität Graz Institut für Angewandte Mathematik Steyrergasse 30/III A 8010 Graz
Telephon	+43(0)316-873-8623
Zimmer	ST 03 244
Mail	loescher@math.tugraz.at
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