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arxiv: 2012.13229 · v2 · pith:UKI6KZWTnew · submitted 2020-12-24 · 🧮 math.NA · cs.NA

A Space-Time DPG Method for the Heat Equation

classification 🧮 math.NA cs.NA
keywords methodequationheatspace-timeadaptivebeneficialbrokenbuilt-in
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This paper introduces an ultra-weak space-time DPG method for the heat equation. We prove well-posedness of the variational formulation with broken test functions and verify quasi-optimality of a practical DPG scheme. Numerical experiments visualize beneficial properties of an adaptive and parabolically scaled mesh-refinement driven by the built-in error control of the DPG method.

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