Estimates in the Generalized Morrey Spaces for Linear Parabolic Systems

The purpose of this paper is to study the parabolic system $u_t^i-D_α(a_{ij}^{αβ}D_βu^j)=-div f^i$ in the generalized Morrey Space $L_ϕ^{2,λ}$ . We would like to understand the regularity of the solutions of this system. It will be shown that 1: if $a_{ij}^{αβ}\in C(\bar{Q_{T}})$ then $Du\in L_ϕ^{2,λ}$, and 2: if $a_{ij}^{αβ}\in VMO(Q_{T})$ then $Du\in L_ϕ^{2,λ}$. Moreover we will be able to obtain estimates on the gradient of the solutions to the system, which will tell us about the regularity of the solutions.

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