Abstract
The talk is divided into two parts. First I study an elliptic free boundary problem and show that sometimes it is useful to work with curvilinear coordinates. Then I present some results on parabolic problems, which I obtained in cooperation with I. Diaz.
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© 1988 Plenum Press, New York
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Kawohl, B. (1988). On the Convexity of Level Sets for Elliptic and Parabolic Exterior Boundary Value Problems. In: Král, J., Lukeš, J., Netuka, I., Veselý, J. (eds) Potential Theory. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0981-9_20
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