Elliptic boundary value problems in nonsmooth domains in full scales of Banach spaces (Q1374994)

We establish a theorem on a complete set of isomorphisms for elliptic boundary value problems in domains with nonsmooth boundaries. This work can be considered as a development of our previous work, in which we solved Kondrat'ev's problem, i.e., proved a theorem on a local increase in the smoothness of generalized solutions to elliptic boundary value problems in nonsmooth domains.