Answers are grounded in this paper and cite their sources.
It is shown that surface tension effects on the free boundary have a regularizing effect for Hele-Shaw models, which implies existence and uniqueness of classical solutions for general initial domains.
No takes yet. Share an insight, caveat, or question.
Escher et al. (1996) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: