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arxiv: 1607.08650 · v2 · pith:NNSWT5XFnew · submitted 2016-07-28 · 🧮 math.AP · math.CA

Parabolic NTA domains in mathbb R²

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keywords mathbbboundaryparabolicapplyblowupcaloricclassifycomponent
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We show that each connected component of the boundary of a parabolic NTA domain in $\mathbb R^2$ is given by a graph. We then apply this observation to classify blowup solutions in $\mathbb R^2$ to a free boundary problem for caloric measure first considered by Hofmann, Lewis and Nystr\"om (Duke Math J. 2004).

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