Abstract
We investigate stability of Martin boundaries for positive solutions of elliptic partial differential equations. We define a perturbation which isG DL -semismall at infinity, show that Martin boundaries are stable under this perturbation, and give sufficient conditions for it.
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This work was carried out partially while the author was visiting the Department of Mathematics, Technion — Israel Institute of Technology. He wishes to thank the Israel Association for the Promotion of International Scientific Relations, the Japan Society of Promotion of Science, and the Technion.
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Murata, M. Semismall perturbations in the martin theory for elliptic equations. Isr. J. Math. 102, 29–60 (1997). https://doi.org/10.1007/BF02773794
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DOI: https://doi.org/10.1007/BF02773794