## Abstract Let __L__ be a nef line bundle on a Del Pezzo surface. We show that __L__ + __K~S~__ is birationally __k__βvery ample if and only if all the smooth curves in |__L__| have gonality β₯__k__ + 2, and we also find numerical criteria for birational __k__βvery ampleness.
On Higher Order Embeddings and n - Connectedness
β Scribed by M. C. Beltrametti; S. Di Rocco; A. Lanteri
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 765 KB
- Volume
- 201
- Category
- Article
- ISSN
- 0025-584X
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β¦ Synopsis
Abstract
Let L be a very ample line bundle on a smooth complex projective surface. The relations between the higher order embedding properties of L, like k β spannedness, k β very ampleness, k β jet ampleness, and the higher numerical connectedness properties of divisors D Ξ΅ |L| are Investigated. Some applications to adjoint bundles as well as pluricanonical bundles are discussed.
π SIMILAR VOLUMES
This paper presents a new higher-order bounded scheme, weighted-average coefficient ensuring boundedness (WACEB), for approximating the convective fluxes in solving transport equations with the finite volume difference method (FVDM). The weighted-average formulation is used for interpolating the var