A Laplace transform certified reduced basis method; application to the heat equation and wave equation |
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Authors: | DB Phuong Huynh David J Knezevic Anthony T Patera |
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Institution: | Massachusetts Institute of Technology, room 3-266, Cambridge, MA 02139, USA |
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Abstract: | We present a certified reduced basis (RB) method for the heat equation and wave equation. The critical ingredients are certified RB approximation of the Laplace transform; the inverse Laplace transform to develop the time-domain RB output approximation and rigorous error bound; a (Butterworth) filter in time to effect the necessary “modal” truncation; RB eigenfunction decomposition and contour integration for Offline–Online decomposition. We present numerical results to demonstrate the accuracy and efficiency of the approach. |
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