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Results tagged with ag.algebraic-geometry
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user 104949
Algebraic varieties, stacks, sheaves, schemes, moduli spaces, complex geometry, quantum cohomology.
5
votes
1
answer
351
views
Base change and the octahedron axiom
I am trying to understand "de Cataldo, Migliorini. The perverse filtration and the Lefschetz hyperplane theorem. Annals of Mathematics, 171(2010), 2089-2113." My question is about one detail in the pa …
- 143
7
votes
0
answers
361
views
Equivariant Hilbert schemes of points
Let $G$ be a finite subgroup of $\mathrm{SL}(2, \mathbb{C})$ and let $X$ be the quotient surface $X = \mathrm{Spec}(\mathbb{C}[x, y]^{G})$. Denote by $\mathrm{Hilb}^r([X])$ the equivariant Hilbert sch …
- 143
2
votes
0
answers
208
views
Representations, ADE singularities
This sounds very classical, but it would be great if someone can point out a reference to me.
Let $G \leq \mathrm{SL}(2, \mathbb{C})$ be a finite group with its natural action on $\mathbb{C}[x, y]$, …
- 143