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math.AP2026
A duality approach to gradient Hölder estimates for linear divergence form elliptic equations
Olli Saari, Yuanlin Sun, Hua-Yang Wang +1
We prove a sparse bound in the context of Schauder theory for divergence form elliptic partial differential equations. In addition, we show how an iteration argument inspired by sp…
math.AP2024
Sparse gradient bounds for divergence form elliptic equations
Olli Saari, Hua-Yang Wang, Yuanhong Wei
We provide sparse estimates for gradients of solutions to divergence form elliptic partial differential equations in terms of the source data. We give a general result of Meyers (o…