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A fractional Korn-type inequality for smooth domains and a regularity estimate for nonlinear nonlocal systems of equations
In this paper we prove a fractional analogue of the classical Korn's first inequality. The inequality makes it possible to show the equivalence of a function space of vector field characterized by a Gagliardo-type seminorm with 'projected difference' with that of a corresponding fractional Sobolev space. As an application, we …