Summary
Let L 1 and L 2 be linear, second order, parabolic operators. We prove some necessary and some sufficient conditions for an L 1 -regular boundary point to be L 2 -regular. In particular we prove the following results: every L 1 -regular boundary points is L 2 -regular, and viceversa, (if and) only if L 1 =L 2 .
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Entrata in Redazione il 23 giugno 1976.
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Lanconelli, E. Sul confronto della regolarità dei punti di frontiera rispetto ad operatori lineari parabolici diversi. Annali di Matematica 114, 207–227 (1977). https://doi.org/10.1007/BF02413787
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DOI: https://doi.org/10.1007/BF02413787