Failure of the condition N below W 1 , n . Kauhanen, Janne — 2002 Annales Academiae Scientiarum Fennicae. Mathematica
Mappings of finite distortion: sharp Orlicz-conditions. Janne Kauhanen; Pekka Koskela; Jan Malý; Jani Onninen; Xiao Zhong — 2003 Revista Matemática Iberoamericana We establish continuity, openness and discreteness, and the condition (N) for mappings of finite distortion under minimal integrability assumptions on the distortion.