Existence of a Classical Solution for a
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Roberto Gianni; Paola Mannucci
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Article
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1997
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John Wiley and Sons
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English
β 276 KB
## Communicated by H. Neunzert We prove existence, in a small time interval, of a classical solution having a regular free boundary, (i.e. the level set +u"0,) of a multidimensional filtration problem. The key point to get the regularity of the level set +u"0, is the proof of an a priori estimate