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Jan 25, 2023 at 18:38 vote accept CommunityBot
Dec 31, 2022 at 17:15 comment added Evgeny Shinder A very recent excellent overview "On rationality problems" by Debarre: perso.imj-prg.fr/olivier-debarre/wp-content/uploads/sites/34/… No smooth rational hypersurfaces of degree 4 and higher are known, and this is one of the key questions in the field, alongside rationality of cubic fourfold. Welcome to MathOverflow!
Dec 28, 2022 at 0:29 answer added dhy timeline score: 5
Dec 27, 2022 at 23:14 history edited user493108 CC BY-SA 4.0
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Dec 27, 2022 at 23:47
S Dec 27, 2022 at 23:14 history asked user493108 CC BY-SA 4.0