NANov 28, 2018
Model reduction by separation of variables: a comparison between Hierarchical Model reduction and Proper Generalized DecompositionSimona Perotto, Michele Giuliano Carlino, Francesco Ballarin
Hierarchical Model reduction and Proper Generalized Decomposition both exploit separation of variables to perform a model reduction. After setting the basics, we exemplify these techniques on some standard elliptic problems to highlight pros and cons of the two procedures, both from a methodological and a numerical viewpoint.