Abstract.
We present several extensions of the Brezis–Lions Lemma on removable singularities. We also give a positive answer to a question raised by H. Brezis and M. Marcus about an “inverse” maximum principle for the Laplacian.
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Dupaigne, L., Ponce, A.C. Singularities of positive supersolutions in elliptic PDEs. Sel. math., New ser. 10, 341 (2004). https://doi.org/10.1007/s00029-004-0390-6
DOI: https://doi.org/10.1007/s00029-004-0390-6