Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleLiouville's operator for a disc in space.AuthorsBerg, Christian; Fuglede, BentPublicationManuscripta Mathematica, 1990, Vol 67, Issue 1, p165ISSN0025-2611Publication typeArticleDOI10.1007/BF02568428