arXiv:1312.2820 Abstract | arXiv Analytics

arXiv:1312.2820 [math.AP]Abstract References Reviews Resources

Lower semicontinuity of weak supersolutions to the porous medium equation

Published 2013-12-10Version 1

Weak supersolutions to the porous medium equation are defined by means of smooth test functions under an integral sign. We show that nonnegative weak supersolutions become lower semicontinuous after redefinition on a set of measure zero. This shows that weak supersolutions belong to a class of supersolutions defined by a comparison principle.

Comments: 11 pages

Categories: math.AP

Subjects: 35K55, 31C45

Keywords: porous medium equation, lower semicontinuity, smooth test functions, weak supersolutions belong, comparison principle

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