Kolmogorov n-widths for linear dynamical systems
Kolmogorov n-widths for linear dynamical systems
复制标题
线性动力系统的柯尔莫哥洛夫 n 宽度
DOI:
10.1007/s10444-019-09701-0
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发表时间:
2019
影响因子:
1.7
通讯作者:
Gugercin, Serkan
中科院分区:
文献类型:
--
作者:
Unger, Benjamin;Gugercin, Serkan
Kolmogorovn-widths and Hankel singular values are two commonly used concepts in model reduction. Here, we show that for the special case of linear time-invariant (LTI) dynamical systems, these two concepts are directly connected. More specifically, the greedy search applied to the Hankel operator of an LTI system resembles the minimizing subspace for the Kolmogorovn-width and the Kolmogorovn-width of an LTI system equals its (n+ 1)st Hankel singular value once the subspaces are appropriately defined. We also establish a lower bound for the Kolmorogovn-width for parametric LTI systems and illustrate that the method of active subspaces can be viewed as the dual concept to the minimizing subspace for the Kolmogorovn-width.
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DOI:
10.1137/1.9781611974829
发表时间:
2015-11
期刊:
arXiv: Numerical Analysis
影响因子:
--
作者:
A. Nouy
通讯作者:
A. Nouy
DOI:
--
发表时间:
2010
期刊:
Proceedings of the 2010 American Control Conference
影响因子:
--
作者:
S. Djouadi
通讯作者:
S. Djouadi
DOI:
--
发表时间:
2018
期刊:
Computational Methods in Applied Sciences
影响因子:
--
作者:
N. Cagniart;Y. Maday;B. Stamm
通讯作者:
B. Stamm
DOI:
--
发表时间:
1985
期刊:
影响因子:
--
作者:
W. A. Light
通讯作者:
W. A. Light
影响因子:
6.8
作者:
P. Wittmuess;C. Tarín;A. Keck;E. Arnold;O. Sawodny
通讯作者:
O. Sawodny