Timeline for Lower bound for the dimension of the space of deformations $\mathrm{Defor}(f : X \to Y)$ in relative setting
Current License: CC BY-SA 4.0
10 events
| when toggle format | what | by | license | comment | |
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| Apr 27, 2023 at 9:40 | vote | accept | JackYo | ||
| Apr 26, 2023 at 20:02 | comment | added | Jason Starr | You can read more about this in Artin's "Lectures on Deformations of Singularities" available here: math.tifr.res.in/~publ/ln/tifr54.pdf | |
| Apr 25, 2023 at 19:47 | comment | added | JackYo | Also I not see where the assumption $\mathrm{Ext}^0(\mathbb{L}_f, \mathcal{O}_X) = 0$ (ie no infinitesimal iso's) is going to be exploited | |
| Apr 25, 2023 at 19:33 | comment | added | JackYo | Could you explain how we obtain this injection from the quotient $\frac{\langle x_1,\dots,x_n \rangle^{e+1}+ I}{\langle x_1,\dots,x_n \rangle^{e+1}+ \left( \langle x_1,\dots,x_n \rangle I\right) }$ into the dual of $\mathbb{E}\text{xt}^2_{\mathcal{O}_X}(\mathbb{L}_f,\mathcal{O}_X)$? I not see from which result on deformation theory I mentioned above it should follow. | |
| Apr 5, 2023 at 16:50 | history | edited | Jason Starr | CC BY-SA 4.0 |
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| Apr 4, 2023 at 18:47 | history | edited | Jason Starr | CC BY-SA 4.0 |
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| Apr 4, 2023 at 18:41 | history | edited | Jason Starr | CC BY-SA 4.0 |
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| Apr 4, 2023 at 18:35 | history | edited | Jason Starr | CC BY-SA 4.0 |
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| S Apr 4, 2023 at 17:33 | history | answered | Jason Starr | CC BY-SA 4.0 | |
| S Apr 4, 2023 at 17:33 | history | made wiki | Post Made Community Wiki by Jason Starr |