| Original language | English (US) |
|---|---|
| Pages (from-to) | 293-302 |
| Number of pages | 10 |
| Journal | International Mathematics Research Notices |
| Volume | 1994 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1994 |
Bibliographical note
Funding Information:The research described here was partially supported by NSF grant DMS 92-04487 and was carried out while the author was visiting Princeton University and the Institute for Advanced Study during winter term 1993.