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Finite Element Exterior Calculus - 1

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GCSW01 - Tutorial workshop

These lectures aim to provide an introduction and overview of Finite Element Exterior Calculus, a transformative approach to designing and understanding numerical methods for partial differential equations. The first lecture will introduce some of the key tools—chain complexes and their cohomology, closed operators in Hilbert space, and their marriage in the notion of Hilbert complexes—and explore their application to PDEs. The lectures will continue with a study of the properties needed to effectively discretize Hilbert complexes, illustrating the abstract framework on the concrete example of the de Rham complex and its applications to problems such as Maxwell's equation. The third lecture will get into differential forms and their discretization by finite elements, bringing in new tools like the Koszul complex and bounded cochain projections and revealing the Periodic Table of Finite Elements. Finally in the final lecture we will examine new complexes, their discretization, and applications.

This talk is part of the Isaac Newton Institute Seminar Series series.

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