English

Pathological solutions to elliptic problems in divergence form with continuous coefficients

Analysis of PDEs 2009-12-22 v1

Abstract

We construct a function uWloc1,1(B(0,1))u \in W^{1,1}_{\mathrm{loc}} (B(0,1)) which is a solution to \Div(Au)=0\Div (A \nabla u)=0 in the sense of distributions, where AA is continuous and u∉Wloc1,p(B(0,1))u \not \in W^{1,p}_{\mathrm{loc}} (B(0,1)) for p>1p > 1. We also give a function uWloc1,1(B(0,1))u \in W^{1,1}_{\mathrm{loc}} (B(0,1)) such that uWloc1,p(B(0,1))u \in W^{1,p}_{\mathrm{loc}}(B(0,1)) for every p<p < \infty, uu satisfies \Div(Au)=0\Div (A \nabla u)=0 with AA continuous but u∉Wloc1,(B(0,1))u \not \in W^{1, \infty}_{\mathrm{loc}}(B(0,1)).

Keywords

Cite

@article{arxiv.0904.1674,
  title  = {Pathological solutions to elliptic problems in divergence form with continuous coefficients},
  author = {Tianling Jin and Vladimir Maz'ya and Jean Van Schaftingen},
  journal= {arXiv preprint arXiv:0904.1674},
  year   = {2009}
}

Comments

6 pages

R2 v1 2026-06-21T12:50:09.510Z