Timeline for Quiver varieties associated to D_4
Current License: CC BY-SA 4.0
4 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 21, 2022 at 15:12 | vote | accept | Tommaso Scognamiglio | ||
| Nov 9, 2021 at 11:24 | comment | added | Balazs | ...finally indeed $X$ and $Y_t$ for $t\neq 0$ are diffeomorphic, in fact algebraic deformation equivalent, as they sit in the Grothendieck resolution family. | |
| Nov 9, 2021 at 11:23 | comment | added | Balazs | Perhaps just to extend on this a little bit, as the OP asked for "explicit geometric presentation": the singularity $Y=\mathfrak M_{0,0}(\mathbf v) =\mathbb C^2/\Gamma$ is affine, and well known to be a hypersurface in ${\mathbb A}^3$ given by an explicit equation; its deformation $Y_t = \mathfrak M_{0,\zeta_{\mathbb C}}(\mathbf v)$ is still affine, and is given by a generic deformation of the equation of the hypersurface; the minimal resolution $X = \mathfrak M_{\zeta_{\mathbb R},0}(\mathbf v)$ of $Y$ is not affine of course but is a composite of blowups of $Y=Y_0$... | |
| Oct 10, 2021 at 8:24 | history | answered | Hiraku Nakajima | CC BY-SA 4.0 |