English

Removable singularities for div v = f in weighted Lebesgue spaces

Classical Analysis and ODEs 2015-10-14 v1 Analysis of PDEs Functional Analysis

Abstract

Let wL1_loc(Rn)w\in L^1\_{loc}(\R^n) be apositive weight. Assuming that a doubling condition and an L1L^1 Poincar\'e inequality on balls for the measure w(x)dxw(x)dx, as well as a growth condition on ww, we prove that the compact subsets of Rn\R^n which are removable for the distributional divergence in L_1/wL^{\infty}\_{1/w} are exactly those with vanishing weighted Hausdorff measure. We also give such a characterization for Lp_1/wL^p\_{1/w}, 1\textlessp\textless+1\textless{}p\textless{}+\infty, in terms of capacity. This generalizes results due to Phuc and Torres, Silhavy and the first author.

Keywords

Cite

@article{arxiv.1510.03544,
  title  = {Removable singularities for div v = f in weighted Lebesgue spaces},
  author = {Laurent Moonens and Emmanuel Russ and Heli Tuominen},
  journal= {arXiv preprint arXiv:1510.03544},
  year   = {2015}
}