Estimates of Dirichlet eigenvalues of divergent elliptic operators in non-Lipschitz domains
arXiv:2009.06936
Abstract
We study spectral estimates of the divergence form uniform elliptic operators with the Dirichlet boundary condition in bounded non-Lipschitz simply connected domains . The suggested method is based on the quasiconformal composition operators on Sobolev spaces with applications to the weighted Poincaré-Sobolev inequalities.
13 pages