Constructive interpolation points selection in the Loewner framework

08/30/2021

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by   Pierre Vuillemin, et al.

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This note describes a constructive heuristic to select frequencies of interest within the context of reduced-order modelling by interpolation. The approach is described here through the Loewner framework. Numerical illustrations highlight the benefit it can bring to decrease the required number of interpolation points which is key when the data come from numerically expensive solvers.