M. Milman, INTEGRABILITY OF THE JACOBIANS OF ORIENTATION PRESERVING-MAPS - INTERPOLATION METHODS, Comptes rendus de l'Academie des sciences. Serie 1, Mathematique, 317(6), 1993, pp. 539-543
We study the integrability of the Jacobian of orientation preserving m
aps. We extend previous work by Muller, Coifman, P.-L. Lions, Meyer an
d Semmes, Iwaniec and Sbordone, Brezis, Fusco and Sbordone, Greco and
Iwaniec, among others. In particular we provide proofs to conjectures
proposed by Greco and Iwaniec. Our methods are based on interpolation
theory.