Timeline for Does $(x^2 - 1)(y^2 - 1) = c z^4$ have a rational point, with z non-zero, for any given rational c?
Current License: CC BY-SA 3.0
3 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| May 19, 2012 at 21:55 | comment | added | Noam D. Elkies | The word you're looking for is "birational", not "unirational". The resulting Diophantine equation looks quite familiar... | |
| May 19, 2012 at 16:20 | history | edited | John R Ramsden | CC BY-SA 3.0 |
added 172 characters in body; added 6 characters in body
|
| May 19, 2012 at 16:04 | history | answered | John R Ramsden | CC BY-SA 3.0 |