Abstract
The strong maximum principle is proved for solutions of the inequality Δu ≥ 0 on a stratified set.
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Translated from Sovremennaya Matematika i Ee Prilozheniya (Contemporary Mathematics and Its Applications), Vol. 68, Partial Differential Equations, 2011.
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Oshchepkova, S.N., Penkin, O.M. Maximum principle for subharmonic functions on a stratified set. J Math Sci 175, 33–38 (2011). https://doi.org/10.1007/s10958-011-0330-x
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DOI: https://doi.org/10.1007/s10958-011-0330-x