Estimates in Generalized Morrey Spaces for Weak Solutions to Divergence Degenerate Parabolic Systems

Let X = (X1,··· ,Xq) be a family of real smooth vector fields satisfying Homander's condition. The purpose of this paper is to establish gradi- ent estimates in generalized Morrey spaces for weak solutions of the divergence degenerate parabolic system related to X : u i +X ∗ �(a