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Adaptive multirate integration of cardiac electrophysiology with spectral deferred correction methods (2022)

Weiser, Martin (Dr.) ; Chegini, Fatemeh (Dr.)

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Publication Date: 2023-03-27

Description: The highly localized dynamics of cardiac electrophysiology models call for adaptive simulation methods. Unfortunately, the overhead incurred by classical mesh adaptivity turns out to outweigh the performance improvements achieved by reducing the problem size. Here, we explore a different approach to adaptivity based on algebraic degree of freedom subset selection during spectral deferred correction sweeps, which realizes a kind of multirate higher order integration. Numerical experience indicates a significant performance increase compared to uniform simulations.

Language: English

Type: conferenceobject , doc-type:conferenceObject

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