Strong Unique Continuation Properties of Generalized Baouendi–Grushin Operators
Nicola Garofalo, Dimiter Vassilev · Communications in Partial Differential Equations · 2007
This paper gives a quantitative control of the order of zero of a weak solution to perturbations of the Baouendi–Grushin operator, which generalizes the result due to Aronszaijn, Krzywicki, and Szarski valid for elliptic operators in divergence form with Lipschitz continuous coefficients.