On a rigidity criterion for del Pezzo fibrations over ${\mathbb P}^1$
| dc.creator | Grinenko, Mikhail | |
| dc.date | 1999-11-26 | |
| dc.date.accessioned | 2026-07-07T05:31:57Z | |
| dc.date.available | 2026-07-07T05:31:57Z | |
| dc.description | We discuss the rigidity problem for Mori fibrations on del Pezzo surfaces of degree 1, 2 and 3 over ${\mathbb P}^1$ and formulate the following conjecture: such a del Pezzo fibration $V/{\mathbb P}^1$ is birationally rigid if and only if its quasi-effective and adjunction thresholds coincide. We prove the "only if" part of this conjecture. | |
| dc.description | AmsLaTEX; 10 pages | |
| dc.identifier | https://arxiv.org/abs/math/9911210 | |
| dc.identifier | http://arxiv.org/abs/math/9911210 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/79486 | |
| dc.subject | Algebraic Geometry | |
| dc.subject | 14E07; 14E05; 14E06 | |
| dc.title | On a rigidity criterion for del Pezzo fibrations over ${\mathbb P}^1$ | |
| dc.type | text |