Publication Date:
2019
Description:
〈p〉Publication date: Available online 5 July 2019〈/p〉
〈p〉〈b〉Source:〈/b〉 Journal of Differential Equations〈/p〉
〈p〉Author(s): Fabio Punzo〈/p〉
〈h5〉Abstract〈/h5〉
〈div〉〈p〉We investigate uniqueness of solutions to the initial value problem for degenerate parabolic equations, posed in bounded domains, where no boundary conditions are prescribed. In order to obtain uniqueness, we need that the solutions satisfy certain integral growth conditions, which are crucially related to the degeneracy of the operator near the boundary. In particular, such solutions can be unbounded near the boundary. Our hypothesis on the behavior of the operator at the boundary is optimal; in fact, we show that if it fails, then nonuniqueness of solutions prevails.〈/p〉〈/div〉
Print ISSN:
0022-0396
Electronic ISSN:
1090-2732
Topics:
Mathematics
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