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相关论文: Ruled Fano fivefolds of index two

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We classify Fano fivefolds of index two which are blow-ups of smooth manifolds along a smooth center.

代数几何 · 数学 2017-09-29 Elena Chierici , Gianluca Occhetta

We classify rank two vector bundles on a Fano threefold of Picard rank one whose projectivizations are weak Fano. We also prove the existence of examples for each case of the classification result. Our classification includes detailed…

代数几何 · 数学 2025-05-07 Takeru Fukuoka , Wahei Hara , Daizo Ishikawa

We classify rank two vector bundles on a given del Pezzo threefold of degree four whose projectivizations are weak Fano into seven cases. We also give an example for each of these seven cases.

代数几何 · 数学 2022-07-26 Takeru Fukuoka , Wahei Hara , Daizo Ishikawa

An almost Fano bundle is a vector bundle on a smooth projective variety that its projectivization is an almost Fano variety. In this paper, we prove that almost Fano bundles exist only on almost Fano manifolds and study rank 2 almost Fano…

代数几何 · 数学 2010-04-21 Kazunori Yasutake

This paper classifies rank two vector bundles on a del Pezzo threefold $X$ of degree five whose projectivizations are weak Fano. This classification is then used to determine properties of the moduli spaces of such vector bundles on $X$,…

代数几何 · 数学 2025-05-08 Takeru Fukuoka , Wahei Hara , Daizo Ishikawa

In this paper we classify n-dimensional Fano manifolds with index >=n-2 and positive second Chern character.

代数几何 · 数学 2012-06-08 Carolina Araujo , Ana-Maria Castravet

In this work we deal with vector bundles of rank two on a Fano manifold $X$ with $b_2=b_4=1$. We study the nef and pseudoeffective cones of the corresponding projectivizations and how these cones are related to the decomposability of the…

代数几何 · 数学 2015-11-03 Roberto Muñoz , Gianluca Occhetta , Luis Solá Conde

A vector bundle whose projectivization becomes a weak Fano variety is called a weak Fano bundle. We present classification results for rank 2 weak Fano bundles on higher-dimensional quadrics $Q^n$ of dimension $\ge 5$.

代数几何 · 数学 2025-01-22 Yuta Takahashi

In this paper, we classify smooth toric Fano 5-folds of index 2. There exist exactly 10 smooth toric Fano 5-folds of index 2 up to isomorphisms.

代数几何 · 数学 2007-05-23 Hiroshi Sato

We classify Q-Fano threefolds of Fano index > 2 and big degree.

代数几何 · 数学 2016-01-29 Yuri Prokhorov

In this paper we classify rank two Fano bundles $\cE$ on Fano manifolds satisfying $H^2(X,\Z)\cong H^4(X,\Z)\cong\Z$. The classification is obtained via the computation of the nef and pseudoeffective cones of the projectivization…

代数几何 · 数学 2015-03-10 Roberto Muñoz , Gianluca Occhetta , Luis E. Solá Conde

We classify Fano manifolds X containing a divisor E isomorphic to projective space such that the normal bundle $N_{E/X}$ is strictly negative.

代数几何 · 数学 2007-05-23 Toru Tsukioka

We classify the cones of curves of Fano varieties of dimension greater or equal than five and (pseudo)index dim X -3, describing the number and type of their extremal rays.

代数几何 · 数学 2017-09-29 Elena Chierici , Gianluca Occhetta

In this note, we classify smooth equivariant compactifications of $\mathbb{G}_a^n$ which are Fano manifolds with index $\geq n-2$.

代数几何 · 数学 2018-10-16 Baohua Fu , Pedro Montero

We classify non-factorial nodal Fano threefolds with $1$ node and class group of rank $2$.

代数几何 · 数学 2024-10-04 Ivan Cheltsov , Igor Krylov , Jesus Martinez-Garcia , Evgeny Shinder

In this paper we give a splitting criterion for uniform vector bundles on Fano manifolds covered by lines. As a consequence, we classify low rank uniform vector bundles on Hermitian symmetric spaces and Fano bundles of rank two on…

代数几何 · 数学 2015-03-10 Roberto Munoz , Gianluca Occhetta , Luis E. Sola Conde

We prove that Fano 5-folds with nef tangent bundles are rational homogeneous manifolds.

代数几何 · 数学 2015-03-17 Akihiro Kanemitsu

We study the vector bundles without intermediate cohomology on Fano threefolds of index two, degree d=3,4,5 and Betti number one. We obtain a complete characterization in the case of rank-two vector bundles. For arbitrary rank, we give all…

代数几何 · 数学 2007-05-23 Enrique Arrondo , Laura Costa

We prove that smooth Fano 5-folds with nef tangent bundles and Picard numbers greater than one are rational homogeneous manifolds.

代数几何 · 数学 2013-04-10 Kiwamu Watanabe

We study Fano manifolds of pseudoindex greater than one and dimension greater than five, which are blow-ups of smooth varieties along smooth centers of dimension equal to the pseudoindex of the manifold. We obtain a classification of the…

代数几何 · 数学 2007-09-21 Elena Chierici , Gianluca Occhetta
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