On removability of the isolated singularity for solutions of high-order elliptic equations
Salvatore D’Asero · Complex Variables and Elliptic Equations · 2010
A Serrin-like condition is found for removability of the isolated singularity for high-order elliptic equations in divergent form whose coefficients satisfy a polynomial growth conditions and an ellipticity condition stronger than one that usually is considered for high-order elliptic equations.