Effective cones of quotients of moduli spaces of stable n-pointed curves of genus zero
| dc.creator | Rulla, William F. | |
| dc.date | 2003-11-20 | |
| dc.date | 2006-01-24 | |
| dc.date.accessioned | 2026-07-07T06:35:48Z | |
| dc.date.available | 2026-07-07T06:35:48Z | |
| dc.description | Let X_n := \bar M_{0,n}, the moduli space of n-pointed stable genus zero curves, and let X_{n,m} be the quotient of X_n by the action of the symmetric group S_{n-m} on the last n-m marked points. The cones of effective divisors of X_{n,m}, m = 0,1,2, are calculated. Using this, upper bounds for the cones Mov(X_{n,m}) generated by divisors with moving linear systems are calculated, m = 0,1, along with the induced bounds on the cones of ample divisors of \bar M_g and \bar M_{g,1}. As an application, the cone of effective divisors of \bar M_{2,1} is analyzed in detail. | |
| dc.description | Cleaned up version to appear in Trans. Amer. Math. Soc., corrections throughout. 19 pages, 8 figures | |
| dc.identifier | https://arxiv.org/abs/math/0311358 | |
| dc.identifier | http://arxiv.org/abs/math/0311358 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/99906 | |
| dc.subject | Algebraic Geometry | |
| dc.subject | 14E05, 14H10 (Primary); 14E30 (Secondary) | |
| dc.title | Effective cones of quotients of moduli spaces of stable n-pointed curves of genus zero | |
| dc.type | text |