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Related papers: Segre Classes on Smooth Projective Toric Varieties

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For a linear subvariety $M$ of a stratum of meromorphic differentials, we investigate its closure in the multi-scale compactification constructed by Bainbridge-Chen-Gendron-Grushevsky-M\"oller. We prove various restrictions on the type of…

Algebraic Geometry · Mathematics 2022-12-21 Frederik Benirschke , Benjamin Dozier , Samuel Grushevsky

We produce infinite families of SKT manifolds by using methods of toric geometry like the $J$-construction. These SKT manifolds are total spaces of certain principal $G$-bundles over smooth projective toric varieties, where $G$ is an even…

Differential Geometry · Mathematics 2020-11-20 Hatice Coban , Cagri Haciyusufoglu , Mainak Poddar

In this paper we determine the canonical arithmetic volume of hypersurfaces in smooth projective toric varieties. As a consequence, we prove a generalized Hodge index theorem on hypersurfaces in smooth projective toric varieties.

Algebraic Geometry · Mathematics 2024-07-16 Mounir Hajli

Let G be a simple simply-connected group over an algebraically closed field k, X be a smooth connected projective curve over k. In this paper we develop the theory of geometric Eisenstein series on the moduli stack Bun_G of G-torsors on X…

Representation Theory · Mathematics 2016-03-22 Sergey Lysenko

In this note we derive a formalism for describing equivariant sheaves over toric varieties. This formalism is a generalization of a correspondence due to Klyachko, which states that equivariant vector bundles on toric varieties are…

Algebraic Geometry · Mathematics 2009-08-06 Markus Perling

We derive a formula for the Milnor class of scheme-theoretic global complete intersections (with arbitrary singularities) in a smooth variety in terms of the Segre class of its singular scheme. In codimension one the formula recovers a…

Algebraic Geometry · Mathematics 2013-11-19 James Fullwood

We give the full classification of smooth toric Legendrian subvarieties in projective space. We also prove that under some minor assumptions the group of linear automorphisms preserving given Legendrian subvariety preserves the contact…

Algebraic Geometry · Mathematics 2008-05-25 Jaroslaw Buczynski

We prove a combinatorial version of Thom's Isotopy Lemma for projection maps applied to any complex or real toric variety. Our results are constructive and give rise to a method for associating the Whitney strata of the projection to the…

Algebraic Geometry · Mathematics 2024-08-20 Boulos El Hilany , Martin Helmer , Elias Tsigaridas

We obtain refined generating series formulae for equivariant characteristic classes of external and symmetric products of singular complex quasi-projective varieties. More concretely, we study equivariant versions of Todd, Chern and…

Algebraic Geometry · Mathematics 2018-03-16 Laurentiu Maxim , Joerg Schuermann

We study the varieties of invariant totally geodesic submanifolds of isometries of the spherical, Euclidean and hyperbolic spaces in each finite dimension. We show that the dimensions of the connected components of these varieties determine…

Differential Geometry · Mathematics 2016-10-13 Joana Cirici

We describe the algebraic K-theory of the $K(1)$-local sphere and the category of type 2 finite spectra in terms of K-theory of discrete rings and topological cyclic homology. We find an infinite family of 2-torsion classes in the $K_0$ of…

Algebraic Topology · Mathematics 2022-09-13 Ishan Levy

We study the category of Z^l-graded modules with finite-dimensional graded pieces for certain Z+^l-graded Lie algebras. We also consider certain Serre subcategories with finitely many isomorphism classes of simple objects. We construct…

Representation Theory · Mathematics 2015-02-24 Angelo Bianchi , Vyjayanthi Chari , Ghislain Fourier , Adriano Moura

Using the classical S.Lie method we obtain a complete description of infinitesimal symmetries of a holomorphic PDE system defining the Segre family of a real analytic hypersurface. This gives a new proof of some well known results of CR…

Complex Variables · Mathematics 2007-05-23 Alexandre Sukhov

We study rank 2 torus-equivariant torsion-free sheaves on the complex projective space. For reflexive sheaves we derive a simple formula for the Chern polynomial, and in the general torsion-free case we introduce an iterative construction…

Algebraic Geometry · Mathematics 2025-11-07 Carl Tipler

We show that the classic Verlinde numbers on the moduli space of semistable vector bundles on a smooth projective curve can also be regarded as Segre numbers of natural universal complexes over the moduli space.

Algebraic Geometry · Mathematics 2024-12-13 Alina Marian

Let $X$ be an $n$-dimensional smooth complex projective variety embedded in $\mathbb{C}\mathbb{P}^{N}$. We construct a smooth family $\mathcal{X}$ over $\mathbb{C}$ with an embedding in $\mathbb{C}\mathbb{P}^{N} \times \mathbb{C}$ whose…

Symplectic Geometry · Mathematics 2018-09-26 Kiumars Kaveh

In this paper we give an inherently toric description of a special class of sheaves (known as equivariant sheaves) over toric varieties, due in part to A. A. Klyachko. We apply this technology to heterotic compactifications, in particular…

High Energy Physics - Theory · Physics 2016-10-04 A. Knutson , E. Sharpe

The Witt group of a smooth curve over a real closed field is explicitely calculated. The method uses a comparison theorem between the graded Witt group and the etale cohomology groups. In the second part of the paper, the torsion Picard…

Algebraic Geometry · Mathematics 2007-05-23 J-P. Monnier

The purpose of this paper is to develop an efficient computational model for Abelian categories of coherent sheaves over certain classes of varieties. These categories are naturally described as Serre quotient categories. Hence, our…

Algebraic Geometry · Mathematics 2014-10-02 Mohamed Barakat , Markus Lange-Hegermann

The problem of studying the two seemingly unrelated sets of invariants forming the Segre and the Verlinde series has gone through multiple different adaptations including a version for the virtual geometries of Quot schemes on surfaces and…

Algebraic Geometry · Mathematics 2025-10-22 Arkadij Bojko , Jiahui Huang
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