Research output per year
Research output per year
Personal profile
Research areas
- Numeric analysis
- Numerical Linear Algebra
- Matrix Analysis
- Mathematic modelling
- Reduced Order Modelling
- Surrogate Modelling
- Scientific Computing
Fingerprint
Fingerprints are formed from scientific publications and create an index of weighted keyword concepts for each individual researcher.
- 1 Similar Profiles
Network
Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Computing the Riemannian Logarithm on the Stiefel manifold: Metrics, methods and performance
Zimmermann, R. & Hüper, K., 2022, In: S I A M Journal on Scientific Computing. 43, 2, p. 953-980Research output: Contribution to journal › Journal article › Research › peer-review
Open AccessFile11 Downloads (Pure) -
Geometric Optimization for Structure-Preserving Model Reduction of Hamiltonian Systems
Zimmermann, R. & Bendokat, T., 2022, (Accepted/In press) 10th Vienna International Conference on Mathematical Modelling: MATHMOD 2022. Elsevier, (IFAC-PapersOnLine).Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
Open AccessFile45 Downloads (Pure) -
Sliced gradient-enhanced Kriging for high-dimensional function approximation
Zimmermann, R. & Cheng, K., 2022, (Submitted).Research output: Working paper › Research › peer-review
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A geometric approach to subspace updates and orthogonal matrix decompositions under rank-one modifications
Zimmermann, R., 2021, In: Mathematics of Computation. 90, 328, p. 671-688Research output: Contribution to journal › Journal article › Research › peer-review
15 Downloads (Pure) -
Efficient Quasi-Geodesics on the Stiefel Manifold
Bendokat, T. & Zimmermann, R., 14. Jul 2021, Geometric Science of Information: 5th International Conference, GSI 2021, Paris, France, July 21–23, 2021, Proceedings. Nielsen, F. & Barbaresco, F. (eds.). Springer, p. 763-771 (Lecture Notes in Computer Science, Vol. 12829).Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review
File22 Downloads (Pure)
Activities
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Interpolating on the Stiefel manifold under a one-parameter family of metrics.
Ralf Zimmermann (Guest lecturer)
29. Jun 2022 → 1. Jul 2022Activity: Talks and presentations › Conference presentations
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An elementary approach to constructing pseudo-cubic C^1-splines on the Stiefel manifold
Ralf Zimmermann (Guest lecturer)
16. May 2022 → 18. May 2022Activity: Talks and presentations › Guest lectures, external teaching and course activities at other universities
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The real symplectic Stiefel and Grassmann manifolds: metrics, geodesics and applications
Ralf Zimmermann (Speaker) & Thomas Bendokat (Co-author)
11. Apr 2022 → 12. Apr 2022Activity: Talks and presentations › Conference presentations
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Efficient algorithms for computing the Riemannian normal coordinates on the Stiefel manifold
Ralf Zimmermann (Guest lecturer)
14. Mar 2022Activity: Talks and presentations › Guest lectures, external teaching and course activities at other universities
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How to interpolate low-rank matrix decompositions? Computing the Riemannian normal coordinates in the space of orthogonal frames
Ralf Zimmermann (Guest lecturer)
27. Jan 2022Activity: Talks and presentations › Guest lectures, external teaching and course activities at other universities
Projects
- 1 Active
Prizes
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Best Paper Award
Bendokat, T. (Recipient) & Zimmermann, Ralf (Recipient), 23. Jul 2021
Prize: Prizes, scholarships, distinctions
File -
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Airbus Flight Physics Innovation Recognition Event 2010
Zimmermann, Ralf (Recipient), 2010
Prize: Prizes, scholarships, distinctions
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Teaching & Supervision
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MM862: Selected topics in numerical anlysis II
Ralf Zimmermann 01/02/2022 → 31/05/2022
Course: Teaching
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MM566/MM863: Selected topics in numerical anlysis I
Ralf Zimmermann 01/02/2022 → 31/05/2022
Course: Teaching
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MM547: Ordinære differentialligninger: teori, modellering og beregning
Ralf Zimmermann 01/09/2019 → 31/12/2019
Course: Teaching
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MM560: Introduktion til programmering
Ralf Zimmermann & Benjamin Jäger 01/02/2019 → 31/05/2019
Course: Teaching
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