Abstract
The boundary trace problem for positive solutions of -Δu + g(x, u) = 0 is considered for a large class of nonlinearities and three different methods for defining the trace are compared. The boundary trace is usually a generalized Borel measure. The associated Dirichlet problem with boundary data in the set of such Borel measures is studied.
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Véron, L. Some Aspects of the Boundary Trace Problem for Solutions of Nonlinear Elliptic Equations. Journal of Mathematical Sciences 124, 5163–5175 (2004). https://doi.org/10.1023/B:JOTH.0000047251.59557.ca
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DOI: https://doi.org/10.1023/B:JOTH.0000047251.59557.ca