Nonexistence of Sign-Changing Solutions for Some Elliptic Inequalities in Bounded DomainsAbstract:
Nonlinear elliptic inequalities in bounded domains and systems of such
inequalities Nonexistence of solutions to some nonlinear elliptic inequalities with transformed argumentNonexistence of solutions to some
nonlinear elliptic inequalities with transformed argument
On Global Solutions of Second-Order Quasilinear Elliptic InequalitiesDifferential
inequalities of the form $- \operatorname{div} A (x, \nabla u)\ge f(u)\quad \text
On nonexistence of solutions to some nonlinear functional differential inequalities in the
nonlinear term, including higher order ones; quasilinear
elliptic inequalities with a transformed argument
A pointwise differential inequality and second-order regularity for nonlinear elliptic systems to
nonlinear elliptic systems in domains in Rn are derived. Both local and global estimates are established