Special Session 92: 

Green`s function for nondivergent elliptic operators in two dimensions

Seick Kim
Yonsei University
Korea
Co-Author(s):    Hongjie Dong; Seick Kim
Abstract:
We construct the Green function for second order elliptic equations in non-divergence form when the mean oscillations of the coefficients satisfy the Dini condition and the domain has $C^{1,1}$ boundary. We show that the Green`s function is BMO in the domain and establish logarithmic pointwise bounds. We also obtain pointwise bounds for first and second derivatives of the Green`s function.