Abstract
This paper is devoted to partial regularity of weak solutions to nonlinear sub-elliptic systems associated with Hormander’s vector fields with \(p\) growth for \(p\ge 2\). Using \(\mathcal A \)-harmonic approximation technique introduced by Duzaar and Steffen, we prove Holder continuity for gradient of weak solutions with optimal local Holder exponent.
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More From: Revista de la Real Academia de Ciencias Exactas, Fisicas y Naturales. Serie A. Matematicas
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