On the cotangent cohomology of rational surface singularities with almost reduced fundamental cycle
| dc.creator | Gustavsen, Trond Stolen | |
| dc.date | 2003-12-14 | |
| dc.date.accessioned | 2026-07-07T05:03:55Z | |
| dc.date.available | 2026-07-07T05:03:55Z | |
| dc.description | We prove dimension formulas for the cotangent spaces $T^{1}$ and $T^{2}$ for a class of rational surface singularities by calculating a correction term in the general dimension formulas. We get that it is zero if the dual graph of the rational surface singularity $X$ does not contain a particular type of configurations, and this generalizes a result of Theo de Jong stating that the correction term $c(X)$ is zero for rational determinantal surface singularities. In particular our result implies that $c(X)$ is zero for Riemenschneiders quasi-determinantal rational surface singularities, and this also generalise results for qoutient singularities. | |
| dc.description | 11 pages, one figure | |
| dc.identifier | https://arxiv.org/abs/math/0312278 | |
| dc.identifier | http://arxiv.org/abs/math/0312278 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/69600 | |
| dc.subject | Algebraic Geometry | |
| dc.subject | 14B07; 14B10; 13D03 | |
| dc.title | On the cotangent cohomology of rational surface singularities with almost reduced fundamental cycle | |
| dc.type | text |