© 1999 by London Mathematical Society
© The London Mathematical Society
The Characterization of the Regularity of the Jacobian Determinant in the Framework of Bessel Potential Spaces on Domains
Mathematisches Institut, Friedrich-Schiller-Universität Jena Ernst-Abbe-Platz 14, 07743 Jena, Germany
Equipe d'Analyse et de Mathématiques Appliquées, Université de Marne-la-Vallée 5 Boulevard Descartes, Cité Descartes Champs-sur-Marne, 77454 Marne-la-Vallée Cedex 2, France
Received 18 November 1997.
Let 2
m
n. The paper gives necessary and sufficient conditions on the parameters s1, s2, ..., sm, p1, p2, ..., pm such that the Jacobian determinant extends to a bounded operator from Hs1p1 x Hs2p2 x ... x Hsmpm into S'. Here all spaces are defined on Rn or on domains 
Rn. In almost all cases the regularity of the Jacobian determinant is calculated exactly.