Abstract
A method is proposed for constructing local parametrizations of
orthogonal bases and of subspaces by computing
trajectories in the Stiefel and the Grassmann manifold, respectively.
The trajectories are obtained by exploiting sensitivity information
on the singular value decomposition with respect to parametric changes and
a Taylor-like local linearization suitably adapted to the underlying manifold structure.
An important practical application of the proposed approach is
parametric model reduction (pMOR).
The connection with pMOR is discussed in detail and the results are illustrated by numerical experiment.
orthogonal bases and of subspaces by computing
trajectories in the Stiefel and the Grassmann manifold, respectively.
The trajectories are obtained by exploiting sensitivity information
on the singular value decomposition with respect to parametric changes and
a Taylor-like local linearization suitably adapted to the underlying manifold structure.
An important practical application of the proposed approach is
parametric model reduction (pMOR).
The connection with pMOR is discussed in detail and the results are illustrated by numerical experiment.
Original language | English |
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Title of host publication | Numerical Mathematics and Advanced Applications : ENUMATH 2015 |
Editors | Bulent Karasozen, Murat Manguoğlu, Münevver Tezer-Sezgin, Serdar Göktepe, Ömür Uğur |
Volume | 112 |
Publisher | Springer |
Publication date | Dec 2016 |
Pages | 379-387 |
Chapter | V Reduced Order Modeling |
ISBN (Print) | 978-3-319-39927-0 |
ISBN (Electronic) | 978-3-319-39929-4 |
DOIs | |
Publication status | Published - Dec 2016 |
Externally published | Yes |
Event | European Conference on Numerical Mathematics and Advanced Applications - Middle East Technical University, Ankara, Turkey Duration: 13. Sep 2015 → 18. Sep 2015 http://enumath2015.iam.metu.edu.tr/ |
Conference
Conference | European Conference on Numerical Mathematics and Advanced Applications |
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Location | Middle East Technical University |
Country/Territory | Turkey |
City | Ankara |
Period | 13/09/2015 → 18/09/2015 |
Internet address |
Series | Lecture Notes in Computational Science and Engineering |
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Volume | 112 |
ISSN | 1439-7358 |