Nonlinear Stein theorem for differential forms

Swarnendu Sil

We prove that if $u$ is an ${\mathbb{R}}^N$-valued $W_{loc}^{1,p}$ differential $k$-form with $\delta \left(a(x)|du{|}^{p-2}du\right)\in L_{loc}^{(n,1)}$ in a domain of $\…