5 problems

Let $W$ be a regular weight system corresponding to an ADE singularity, and let $f$ be a quasi-homogeneous polynomial attached to $W$. Write $D^b_{\mathbb Z}({\mathcal A}_f)$ for t…

Let $\Gamma$ be a binary dihedral, tetrahedral, octahedral, or icosahedral subgroup of $\operatorname{SU}(2)$, and let the corresponding affine Dynkin diagram have rank parameter…

Let $X_M$ be the resolution of the $A_{M-1}$ singularity, and let $\mathscr O_{c,\lambda_1,\dots,\lambda_{M-1}}(X_M)$ be its family of deformation-quantizations. Let…

Let $X$ be a resolution of an ADE singularity, with deformation $\mathscr O_{\epsilon,\lambda_1,\dots,\lambda_r}(X)$ of its algebra of functions, where $r$ is the ADE rank, and let…

Let $\Phi=D_{1+m/2}$ with $m\neq6$, and let the $\mathbb Z_2$ automorphism exchange the simple roots $f_{m/2}$ and $f_{1+m/2}$. Let $q=e^{2\pi i\tau}$, $y=e^{2\pi iz}$, and let…