Seshadri constants of parabolic vector bundles
Documenta mathematica, Tome 28 (2023) no. 5, pp. 1163-1190
Cet article a éte moissonné depuis la source EMS Press
Let X be a complex projective variety, and let E∗ be a parabolic vector bundle on X with parabolic structure on a divisor. We introduce the notion of parabolic Seshadri constants of E∗. It is shown that these constants are analogous to the classical Seshadri constants of vector bundles, in particular they have parallel definitions and properties. We prove a Seshadri criterion for parabolic ampleness of E∗ in terms of the parabolic Seshadri constants of it. We also compute parabolic Seshadri constants for symmetric powers and tensor products of parabolic vector bundles.
Classification :
14J60, 14C20
Mots-clés : Parabolic bundle, Seshadri constant, nef cone, ample cone, multiplicity
Mots-clés : Parabolic bundle, Seshadri constant, nef cone, ample cone, multiplicity
@article{10_4171_dm_917,
author = {Indranil Biswas and Krishna Hanumanthu and Snehajit Misra and Nabanita Ray},
title = {Seshadri constants of parabolic vector bundles},
journal = {Documenta mathematica},
pages = {1163--1190},
year = {2023},
volume = {28},
number = {5},
doi = {10.4171/dm/917},
url = {http://geodesic.mathdoc.fr/articles/10.4171/dm/917/}
}
TY - JOUR AU - Indranil Biswas AU - Krishna Hanumanthu AU - Snehajit Misra AU - Nabanita Ray TI - Seshadri constants of parabolic vector bundles JO - Documenta mathematica PY - 2023 SP - 1163 EP - 1190 VL - 28 IS - 5 UR - http://geodesic.mathdoc.fr/articles/10.4171/dm/917/ DO - 10.4171/dm/917 ID - 10_4171_dm_917 ER -
Indranil Biswas; Krishna Hanumanthu; Snehajit Misra; Nabanita Ray. Seshadri constants of parabolic vector bundles. Documenta mathematica, Tome 28 (2023) no. 5, pp. 1163-1190. doi: 10.4171/dm/917
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