Lower bounds of decay order of eigenfunctions of second-order elliptic operators
Some estimates for the lower bounds of eigenvalues are established for the second order elliptic equations of the form: \[ -(D,ADu)+qu=\lambda u\quad in\quad \Omega;\quad u\in H^ 2_{loc} (\Omega) \] supp u is not a compact subset of \(\Omega\).
scientific article; zbMATH DE number 3998371
scientific article