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THE BOUNDARY HARNACK PRINCIPLE IN HÖLDER DOMAINS WITH A STRONG REGULARITY

  • Kim, Hyejin (Department of Mathematics and Statistics University of Michigan-Dearborn)
  • Received : 2015.11.07
  • Published : 2016.11.30

Abstract

We prove the boundary Harnack principle and the Carleson type estimate for ratios of solutions u/v of non-divergence second order elliptic equations $Lu=a_{ij}D_{ij}+b_iD_iu=0$ in a bounded domain ${\Omega}{\subset}R_n$. We assume that $b_i{\in}L^n({\Omega})$ and ${\Omega}$ is a $H{\ddot{o}}lder$ domain of order ${\alpha}{\in}$ (0, 1) satisfying a strong regularity condition.

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References

  1. A. D. Aleksandrov, Uniqueness conditions and estimates for the solution of the Dirichlet problem, Vestnik Leningrad Univ. 18 (1963), no. 3, 5-29 (in Russian); English transl.: Amer. Math. Soc. Transl. (2) 68 (1968), 89-119.
  2. R. F. Bass and K. Burdzy, The boundary Harnack principle for non-divergence form elliptic operators, J. London Math. Soc. 50 (1994), 157-169. https://doi.org/10.1112/jlms/50.1.157
  3. H. Kim and M. Safonov, Carleson type estimates for second order elliptic equations with unbounded drift, J. Math. Sci. 176 (2011), no. 6, 928-944. https://doi.org/10.1007/s10958-011-0444-1
  4. H. Kim and M. Safonov, Boundary Harnack principle for second order elliptic equations with unbounded drift, J. Math. Sci. 179 (2011), no. 1, 127-143. https://doi.org/10.1007/s10958-011-0585-2
  5. H. Kim and M. Safonov, The boundary Harnack principle for second order elliptic equations in John and Uniform domains, Proceedings of the St. Petersburg Mathematical Society, Volume XV, pp. 153-176, Advances in Mathematical Analysis of Partial Differential Equations, 2014.
  6. E. M. Landis, Second Order Equations of Elliptic and Parabolic Type, "Nauka", Moscow, 1997 (in Russian); English transl.: Amer. Math. Soc. Transl., Providence, RI, 1997.
  7. M. Safonov, Non-divergence elliptic equations of second order with unbounded drift, differential equations and related topics, 211-232, Amer. Math. Soc. Transl. Ser. 2, 229, Amer. Math. Soc., Providence, RI, 2010.