Orbifold cohomology for global quotients
| dc.creator | Fantechi, Barbara | |
| dc.creator | Goettsche, Lothar | |
| dc.date | 2001-04-23 | |
| dc.date | 2001-04-30 | |
| dc.date.accessioned | 2026-07-07T04:41:24Z | |
| dc.date.available | 2026-07-07T04:41:24Z | |
| dc.description | For an orbifold X which is the quotient of a manifold Y by a finite group G we construct a noncommutative ring with an action of G such that the orbifold cohomology of X as defined in math.AG/0004129 by Chen and Ruan is the G invariant part. In the case thar Y is S^n for a surface S with trivial canonical class we prove that (a small modification of) the orbifold cohomology of X is naturally isomorphic to the cohomology ring of the Hilbert scheme of n points on S computed in math.AG/0012166 by Lehn and Sorger. | |
| dc.description | We correct a small sign error and add some references. 22 pages | |
| dc.identifier | https://arxiv.org/abs/math/0104207 | |
| dc.identifier | http://arxiv.org/abs/math/0104207 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/61344 | |
| dc.subject | Algebraic Geometry | |
| dc.title | Orbifold cohomology for global quotients | |
| dc.type | text |