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most citedJumps in Besov spaces and fine properties of Besov and fractional Sobolev functions

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math.AP2021

On Lipschitz approximations in second order Sobolev spaces and the change of variables formula

Paz Hashash, Alexander Ukhlov

In this paper we study approximations of functions of Sobolev spaces $W^2_{p,\loc}(Ω)$, , by Lipschitz continuous functions. We prove that if $f\in W^2_{p,\loc…