Zeitschrift für angewandte Mathematik und Physik ZAMPSeptember 1985, Volume 36, Issue 5, pp I–I | Cite asProf. Dr. Hans ZieglerAuthorsAuthors and affiliationsMahir SayirArticle 46 Downloads This is a preview of subscription content, log in to check access.Copyright information© Birkhäuser-Verlag 1985Authors and AffiliationsMahir SayirThere are no affiliations available