Perturbations of Nonlinear Elliptic Operators by Potentials in the Space of Multiplicators

Entropy solution for an equation with measure-valued potential in a hyperbolic space

“…In [3] it was shown that the Dirichlet problem Lu = − div(a(x, u, ∇u) + F (u)) + µu = f, x ∈ Ω, u| ∂Ω = 0, (1.1)…”

“…The interest of Russian authors to operators with singular coefficients increased after the paper [5] appeared (see [3] and the references there).…”