Submanifolds with ample normal bundle

Fuente: arXiv
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Main Authors: Luza, Maycol Falla, Loray, Frank, Pereira, Jorge Vitório
Format: Preprint
Published: 2023
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_version_ 1866911789370834944
author Luza, Maycol Falla
Loray, Frank
Pereira, Jorge Vitório
author_facet Luza, Maycol Falla
Loray, Frank
Pereira, Jorge Vitório
contents We construct germs of complex manifolds of dimension $m$ along projective submanifolds of dimension $n$ with ample normal bundle and without non-constant meromorphic functions whenever $m \geq 2n$. We also show that our methods do not allow the construction of similar examples when $m < 2n$ by establishing an algebraicity criterion for foliations on projective spaces which generalizes a classical result by Van den Ven characterizing linear subspaces of projective spaces as the only submanifolds with split tangent sequence.
format Preprint
id arxiv_https___arxiv_org_abs_2303_12553
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle Submanifolds with ample normal bundle
Luza, Maycol Falla
Loray, Frank
Pereira, Jorge Vitório
Algebraic Geometry
Complex Variables
51M15, 32S65
We construct germs of complex manifolds of dimension $m$ along projective submanifolds of dimension $n$ with ample normal bundle and without non-constant meromorphic functions whenever $m \geq 2n$. We also show that our methods do not allow the construction of similar examples when $m < 2n$ by establishing an algebraicity criterion for foliations on projective spaces which generalizes a classical result by Van den Ven characterizing linear subspaces of projective spaces as the only submanifolds with split tangent sequence.
title Submanifolds with ample normal bundle
topic Algebraic Geometry
Complex Variables
51M15, 32S65
url https://arxiv.org/abs/2303.12553