On $-K^2$ for normal surface singularities
| dc.creator | Chen, Hao | |
| dc.creator | Ishii, Shihoko | |
| dc.date | 1998-03-12 | |
| dc.date.accessioned | 2026-07-07T05:24:04Z | |
| dc.date.available | 2026-07-07T05:24:04Z | |
| dc.description | In this paper we show the lower bound of the set of non-zero $-K^2$ for normal surface singularities establishing that this set has no accumulation points from above. We also prove that every accumulation point from below is a rational number and every positive integer is an accumulation point. Every rational number can be an accumulation point modulo $\bZ$. We determine all accumulation points in $[0, 1]$. If we fix the value $-K^2$, then the values of $p_g$, $p_a$, mult, embdim and the numerical indices are bounded, while the numbers of the exceptional curves are not bounded. | |
| dc.description | AMSLatex 15 pages | |
| dc.identifier | https://arxiv.org/abs/math/9803047 | |
| dc.identifier | http://arxiv.org/abs/math/9803047 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/76690 | |
| dc.subject | Algebraic Geometry | |
| dc.title | On $-K^2$ for normal surface singularities | |
| dc.type | text |