Timeline for Obstruction to rationality of del Pezzo surfaces of degree 4
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
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| Mar 21, 2020 at 10:16 | comment | added | Evgeny Shinder | In Tschinkel's talk maths.ed.ac.uk/cheltsov/edge2017/pdf/yura.pdf, on slide 15 he says that it is a conjecture of Colliot-The'le`ne that existence of a point plus vanishing of Br(X_K)/Br(K) for all field extensions K/k implies stable rationality for del Pezzo surfaces. | |
| May 11, 2016 at 12:32 | comment | added | Daniel Loughran | @René: If you want to discuss this approach more, feel free to contact me via email. | |
| May 11, 2016 at 12:23 | comment | added | R.P. | Thanks Daniel! The "extra non-rationality criterion" that you mention looks promising, maybe I will look into it later. It should be a finite check, as you suggest. | |
| May 11, 2016 at 9:42 | vote | accept | R.P. | ||
| May 11, 2016 at 9:01 | history | edited | Daniel Loughran | CC BY-SA 3.0 |
added 1 character in body
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| May 11, 2016 at 8:33 | history | answered | Daniel Loughran | CC BY-SA 3.0 |