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arXiv · 2505.24602

Well-posedness for a two-phase Stefan problem with radiation

Elena Demattè·Juan J. L. Velázquez
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Abstract

In this paper we consider a free boundary problem for the melting of ice where we assume that the heat is transported by conduction in both the liquid and the solid part of the material and also by radiation in the solid. Specifically, we study a one-dimensional two-phase Stefan-like problem which contains a non-local integral operator in the equation describing the temperature distribution of the solid. We will prove the local well-posedness of this free boundary problem combining the Banach fixed-point theorem and classical parabolic theory. Moreover, constructing suitable stationary sub- and supersolutions we will develop a global well-posedness theory for a large class of initial data.

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Elena Demattè, Juan J. L. Velázquez. 2025-05-30. Well-posedness for a two-phase Stefan problem with radiation. https://arxiv.org/abs/2505.24602

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