Dipartimento di Matematica e Applicazioni “R. Caccioppoli”, Università di Napoli “Federico II”, via Cintia, 80126, Napoli, NA, Italy
Abstract:
Bi-Sobolev mappings have been defined as those homeomorphisms such that f and f−1 belong to . We deduce regularity properties of the distortion of f from the regularity of the differential matrix Df−1 and conversely.