| Original language | English (US) |
|---|---|
| Pages (from-to) | 61-89 |
| Number of pages | 29 |
| Journal | Journal fur die Reine und Angewandte Mathematik |
| Volume | 1987 |
| Issue number | 381 |
| DOIs | |
| State | Published - 1987 |
Bibliographical note
Funding Information:The authors gratefully acknowledge the support of S.F.B. 72 at Bonn. The second author would also like to thank the M.S.R.I. at Berkeley and the Stiftung Volkswagen-werk for their support.