[Libmesh-users] Question regarding the algorithm used in TransientRBSystem

[吴家桦Gauvain <cau...@gm...>]

Hi all,

In order to know the details about the POD-Greedy algorithm implemented
in TransientRBSystem for reduced basis construction, I referred to the paper

*B. Haasdonk, M. Ohlberger, Reduced basis method for finite volume
approximations of parametrized evolution equations, M2AN (Math. Model.
Numer. Anal.) 42 (2) (2008) 277–302.*

invoked by

*A high-performance parallel implementation of the certified reduced basis
method **David J. Knezevic , John W. Peterson b*

when the TransientRBSystem is discussed. However, the algorithms proposed
by the former are PCA with fixspace and the selection of time index
associate with the largest error bound change. Neither of them mentions the
POD, which makes me confused. Could anyone give me more information on
the  POD-Greedy
algorithm used in libmesh? Thanks in advance.

Regards,
Gauvain

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