Removability of time-dependent singularities in the heat equation (1304.5147v2)

Published 18 Apr 2013 in math.AP

Abstract: We consider solutions of the linear heat equation with time-dependent singularities. It is shown that if a singularity is weaker than the order of the fundamental solution of the Laplace equation, then it is removable. We also consider the removability of higher dimensional singular sets. An example of a non-removable singularity is given, which implies the optimality of the condition for removability.

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