This paper presents a local Morrey regularity with the optimal exponents for linear parabolic equations in divergence form under the assumption that the leading coefficient is independent of $t$ and not necessarily symmetric based on a rather different approach. Here, we achieve it by applying natural growth properties of Green's functions through the use of parabolic operators and the hole-filling technique.
"Optimal Morrey estimate for parabolic equations in divergence form via Green's functions." Rocky Mountain J. Math. 48 (7) 2431 - 2457, 2018. https://doi.org/10.1216/RMJ-2018-48-7-2431