English
Related papers

Related papers: On Quasismooth Weighted Complete Intersections

200 papers

We extend our model for affine structures on toric Calabi-Yau hypersurfaces math.AG/0205321 to the case of complete intersections.

Algebraic Geometry · Mathematics 2007-05-23 Christian Haase , Ilia Zharkov

A variety is rationally connected if two general points can be joined by a rational curve. A higher version of this notion is rational simple connectedness, which requires suitable spaces of rational curves through two points to be…

Algebraic Geometry · Mathematics 2018-12-17 Cristian Minoccheri

We introduce a new class of zero-dimensional weighted complete intersections, by abstracting the essential features of rational cohomology algebras of equal rank homogeneous spaces of compact connected Lie groups. We prove that, on a…

Differential Geometry · Mathematics 2007-12-11 Stefan Papadima , Laurentiu Paunescu

This is the sequel to our first paper concerning the balanced embedding of a non-compact complex manifold into an infinite-dimensional projective space. We prove the uniqueness of such an embedding. The proof relies on fine estimates of the…

Complex Variables · Mathematics 2023-11-21 Jingzhou Sun

In recent work of T. Cassidy and the author, a notion of complete intersection was defined for (non-commutative) regular skew polynomial rings, defining it using both algebraic and geometric tools, where the commutative definition is a…

Rings and Algebras · Mathematics 2015-03-04 Michaela Vancliff

We apply the theory of weighted bicategorical colimits to study the problem of existence and computation of such colimits of birepresentations of finitary bicategories. The main application of our results is the complete classification of…

Representation Theory · Mathematics 2024-08-28 Mateusz Stroiński

We establish a link between the GIT stability of complete intersections of same degree hypersurfaces in the same ambient projective space, which can be parametrised as tuples in a Grassmanian scheme, and the log canonical thresholds of…

Algebraic Geometry · Mathematics 2022-12-26 Theodoros Stylianos Papazachariou

We apply the specialization technique based on the decomposition of the diagonal to find an explicit example over $\mathbb{Q}$ of a quadric and cubic hypersurface in $\mathbb{P}^6$ such that their intersection is a smooth stably irrational…

Algebraic Geometry · Mathematics 2021-06-01 Bjørn Skauli

We exhibit isomorphisms of Grassmann spaces and their relationship with collineations and embeddings of the underlying projective spaces.

Algebraic Geometry · Mathematics 2024-03-19 Hans Havlicek

We present a construction of noncommutative double mirrors to complete intersections in toric varieties. This construction unifies existing sporadic examples and explains the underlying combinatorial and physical reasons for their…

Algebraic Geometry · Mathematics 2016-02-22 Lev Borisov , Zhan Li

Several generalizations of a commutative ring that is a graded complete intersection are proposed for a noncommutative graded $k$-algebra; these notions are justified by examples from noncommutative invariant theory.

Rings and Algebras · Mathematics 2014-06-25 Ellen E Kirkman , James Kuzmanovich , James J. Zhang

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 count the number of conics through two general points in complete intersections when this number is finite and give an application in terms of quasi-lines.

Algebraic Geometry · Mathematics 2018-01-15 Laurent Bonavero , Andreas Höring

We show that on quasi-smooth weighted complete intersections of codimension at most 3, any ample Cartier divisor $H$ such that $H-K_X$ is ample admits a nontrivial global section. This is done by proving a generalisation of a numerical…

Algebraic Geometry · Mathematics 2025-01-24 Alessandro Passantino

We compute the alpha invariant of any smooth complex projective spin complete intersection of complex dimension $1 \; ({\rm mod} \; 4)$. We prove that the alpha invariant depends only on the total degree and Pontryagin classes. Our findings…

Differential Geometry · Mathematics 2020-02-18 David Baraglia

This paper is devoted to the generalization of the construction of minimal varieties from the previous work of Meng Chen, Chen Jiang and Binru Li. We first establish several effective nefness criterions for the canonical divisor of weighted…

Algebraic Geometry · Mathematics 2025-07-15 Pinxian Bie

It has been shown by Batyrev and Borisov that nef partitions of reflexive polyhedra can be used to construct mirror pairs of complete intersection Calabi--Yau manifolds in toric ambient spaces. We construct a number of such spaces and…

Algebraic Geometry · Mathematics 2015-06-26 Maximilian Kreuzer , Erwin Riegler , David Sahakyan

We give a proof of the $p$-adic weight monodromy conjecture for scheme-theoretic complete intersections in projective smooth toric varieties. The strategy is based on Scholze's proof in the $\ell$-adic setting, which we adapt using…

Algebraic Geometry · Mathematics 2025-06-11 Federico Binda , Hiroki Kato , Alberto Vezzani

We prove the complete intersection theorem and complete nontrivial-intersection theorem for systems of set partitions

Combinatorics · Mathematics 2023-08-10 Vladimir Blinovsky

We prove that a smooth, subcanonical surface of P^4 (projective space over an algebraically closed field of characteristic zero) is complete intersection if it is contained in a quartic hypersurface.

Algebraic Geometry · Mathematics 2007-05-23 Ph. Ellia , D. Franco , L. Gruson