Timeline for Singularities of the moduli stack of Calabi-Yau threefolds
Current License: CC BY-SA 3.0
7 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Jun 2, 2017 at 13:46 | comment | added | user21574 | As additional comment, moduli space of polarized Calabi-Yau is an orbifold since there is no nonzero holomorphic vector field on a Calabi-Yau manifold | |
| Apr 23, 2015 at 14:48 | vote | accept | El Nino | ||
| Apr 23, 2015 at 13:13 | answer | added | abx | timeline score: 12 | |
| Apr 23, 2015 at 12:58 | comment | added | El Nino | @abx Great! That answers my question. The smoothness of the moduli stack is equivalent to "unobstructed deformations" by general abstract nonsense, right? Could you put your comment as an answer, so that I can accept it? Many thanks! | |
| Apr 23, 2015 at 12:49 | comment | added | abx | Yes, Calabi-Yau manifolds have unobstructd deformations. This is due to Tian and Todorov; there is a nice algebraic proof in a paper by Kawamata, J. Algebraic Geom. 1 (1992), no. 2, 183–190. | |
| Apr 23, 2015 at 12:35 | review | First posts | |||
| Apr 23, 2015 at 12:52 | |||||
| Apr 23, 2015 at 12:33 | history | asked | El Nino | CC BY-SA 3.0 |