Expansion of Green's function and regularity of Robin's function for elliptic operators in divergence form

Daomin Cao, Jie Wan

We consider Green's function $G_K$ of the elliptic operator in divergence form ${\mathcal{L}}_K=-\text{div}(K(x)\nabla )$ on a bounded smooth domain $ Ω\subseteq\mathbb{R}^n (n\g…