Equations for $\bar M_{0,n}$

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dc.creatorKeel, Sean
dc.creatorTevelev, Jenia
dc.date2005-07-05
dc.date.accessioned2026-07-07T05:21:24Z
dc.date.available2026-07-07T05:21:24Z
dc.descriptionWe show that the log canonical bundle, $κ$, of $\bar M_{0,n}$ is very ample, show the homogeneous coordinate ring is Koszul, and give a nice set of rank 4 quadratic generators for the homogeneous ideal: The embedding is equivariant for the symmetric group, and the image lies on many Segre embedded copies of $P^1 \times P^2 \times ... \times P^{n-3}$, permuted by the symmetric group. The homogeneous ideal of $\bar M_{0,n}$ is the sum of the homogeneous ideals of these Segre embeddings.
dc.description22 pages
dc.identifierhttps://arxiv.org/abs/math/0507093
dc.identifierhttp://arxiv.org/abs/math/0507093
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/75680
dc.subjectAlgebraic Geometry
dc.subject14
dc.titleEquations for $\bar M_{0,n}$
dc.typetext

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