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Related papers: A remark on generalized complete intersections

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We consider generalized complete intersection manifolds in the product space of projective spaces, and work out useful aspects pertaining to the cohomology of sheaves over them. First, we present and prove a vanishing theorem on the…

High Energy Physics - Theory · Physics 2020-05-11 Qiuye Jia , Hai Lin

We consider the construction of Calabi-Yau varieties recently generalized to where the defining equations may have negative degrees over some projective space factors in the embedding space. Within such "generalized complete intersection"…

High Energy Physics - Theory · Physics 2020-01-07 Per Berglund , Tristan Hubsch

Based on the method by [K\"uc95], we give a procedure to list up all complete intersection Calabi--Yau manifolds with respect to direct sums of irreducible homogeneous vector bundles on Grassmannians for each dimension. In particular, we…

Algebraic Geometry · Mathematics 2019-01-18 Daisuke Inoue , Atsushi Ito , Makoto Miura

We extend the known classification of threefolds of general type that are complete intersections to various classes of non-complete intersections, and find other classes of polarised varieties, including Calabi-Yau threefolds with canonical…

Algebraic Geometry · Mathematics 2022-10-28 Gavin Brown , Alexander Kasprzyk , Lei Zhu

We give two new examples of families of Calabi-Yau complete intersection threefolds whose generic element contains infinitely many lines. We get some results about the normal bundles of these lines and the Hilbert scheme of lines on the…

Algebraic Geometry · Mathematics 2007-05-23 Marcello Bernardara

We classify completely reducible equivariant vector bundles on Grassmannians of exceptional Lie groups which give Calabi--Yau 3-folds as complete intersections. In particular, we find a new family of Calabi--Yau 3-folds in an…

Algebraic Geometry · Mathematics 2024-02-22 Atsushi Ito , Makoto Miura , Shinnosuke Okawa , Kazushi Ueda

We continue the study of engineered complete intersections (ECI) -- an umbrella generality for a number of important objects in combinatoiral and applied algebraic geometry (such as nondegenerate toric complete intersections, critical loci…

Algebraic Geometry · Mathematics 2025-04-23 Alexander Esterov

We study an example of complete intersection Calabi-Yau threefold due to Libgober and Teitelbaum arXiv:alg-geom/9301001, and verify mirror symmetry at a cohomological level. Direct computations allow us to propose an analogue to the…

Algebraic Geometry · Mathematics 2020-05-08 Stefano Filipazzi , Franco Rota

We review advancements in deep learning techniques for complete intersection Calabi-Yau (CICY) 3- and 4-folds, with the aim of understanding better how to handle algebraic topological data with machine learning. We first discuss…

High Energy Physics - Theory · Physics 2023-11-21 Harold Erbin , Riccardo Finotello

We investigate the globally generated vector bundles on complete intersection Calabi-Yau threefolds with the first Chern class at most 2. We classify all the globally generated vector bundles of an arbitrary rank on quintic in…

Algebraic Geometry · Mathematics 2015-01-23 Edoardo Ballico , Sukmoon Huh , Francesco Malaspina

We present a generalization of the complete intersection in products of projective space (CICY) construction of Calabi-Yau manifolds. CICY three-folds and four-folds have been studied extensively in the physics literature. Their utility…

High Energy Physics - Theory · Physics 2016-05-04 Lara B. Anderson , Fabio Apruzzi , Xin Gao , James Gray , Seung-Joo Lee

Let $X$ be a smooth complex projective variety with trivial Chow groups. (By trivial, we mean that the cycle class is injective.) We show (assuming the Lefschetz standard conjecture) that if the vanishing cohomology of a general complete…

Algebraic Geometry · Mathematics 2015-06-30 Claire Voisin

In this paper we compute genus 0 orbifold Gromov--Witten invariants of Calabi--Yau threefold complete intersections in weighted projective stacks, regardless of convexity conditions. The traditional quantumn Lefschetz principle may fail…

Algebraic Geometry · Mathematics 2024-09-11 Felix Janda , Nawaz Sultani , Yang Zhou

We develop some methods to construct normal crossing varieties whose dual complexes are two-dimensional, which are smoothable to Calabi--Yau threefolds. We calculate topological invariants of smoothed Calabi--Yau threefolds and show that…

Algebraic Geometry · Mathematics 2018-11-29 Nam-Hoon Lee

We present an exhaustive, constructive, classification of the Calabi-Yau four-folds which can be described as complete intersections in products of projective spaces. A comprehensive list of 921,497 configuration matrices which represent…

High Energy Physics - Theory · Physics 2013-07-16 James Gray , Alexander S. Haupt , Andre Lukas

We prove that a generic complete intersection Calabi-Yau 3-fold defined by sections of ample line bundles on a product of projective spaces admits a conifold transition to a connected sum of S^{3} \times S^{3}. In this manner, we obtain…

Algebraic Geometry · Mathematics 2023-05-25 Jinxing Xu

We show that the variable cohomology of a general complete intersection of quadrics can be identified with the intersection cohomology of a double covering. As a consequence, we show that the middle cohomology of a general complete…

Algebraic Geometry · Mathematics 2023-05-24 Jan Nagel

In this article, we summarize combinatorial description of complete intersection Calabi-Yau threefolds in Hibi toric varieties. Such Calabi-Yau threefolds have at worst conifold singularities, and are often smoothable to non-singular…

Algebraic Geometry · Mathematics 2019-01-18 Makoto Miura

We give the general solution of the Ward identity for the linear vector supersymmetry which characterizes all topological models. Such solution, whose expression is quite compact and simple, greatly simplifies the study of theories…

High Energy Physics - Theory · Physics 2008-11-26 Alberto Blasi , Nicola Maggiore

In this paper we show that conifold transitions between Calabi-Yau 3-folds can be used for the construction of mirror manifolds and for the computation of the instanton numbers of rational curves on complete intersection Calabi-Yau 3-folds…

alg-geom · Mathematics 2009-10-30 Victor V. Batyrev , Ionunt Ciocan-Fontanine , Bumsig Kim , Duco van Straten
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