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Related papers: Newton-Okounkov bodies for nested Hilbert schemes

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We obtain effective results for the global generation of pluritheta line bundles on moduli spaces of vector bundles on curves. The main ingredient is an independent result giving an upper bound on the dimension of the Hilbert scheme of…

Algebraic Geometry · Mathematics 2007-05-23 Mihnea Popa

We establish some remarkable properties of the cohomology rings of the Hilbert schemes of n points on a projective surface X, from which one sees to what extent these cohomology rings are (in)dependent of X and n.

Algebraic Geometry · Mathematics 2007-05-23 Wei-Ping Li , Zhenbo Qin , Weiqiang Wang

Given a map of vector bundles on a smooth variety, consider the deepest degeneracy locus where its rank is smallest. We show it carries a natural perfect obstruction theory whose virtual cycle can be calculated by the Thom-Porteous formula.…

Algebraic Geometry · Mathematics 2019-12-05 Amin Gholampour , Richard P. Thomas

Let k be an algebraically closed field. We study the cotangent space of a point t corresponding to a monomial ideal I of k[x_1, ..., x_r] in the Hilbert scheme of n points of affine r-space (so the k-dimension of k[x_1, ..., x_r]/I =…

Algebraic Geometry · Mathematics 2007-05-23 Mark E. Huibregtse

Let $k$ be an algebraically closed field of characteristic $p > 3$. Let $X$ be an irreducible smooth projective surface over $k$. Fix an integer $n \geq 1$ and let ${\mathcal{H}{\it ilb}}_X^n$ be the Hilbert scheme parameterizing effective…

Algebraic Geometry · Mathematics 2020-08-10 Arjun Paul , Ronnie Sebastian

We introduce a class of semipositive metrics on ample line bundles in non-Archimedean geometry, called Shilov finite metrics. We calculate the determinant metric distorsion in the exact sequence induced by a global section using…

Algebraic Geometry · Mathematics 2025-12-01 Yanbo Fang

We determine the quantum multiplication with divisor classes on the Hilbert scheme of points on an elliptic surface $S \to \Sigma$ for all curve classes which are contracted by the induced fibration $S^{[n]} \to \Sigma^{[n]}$. The formula…

Algebraic Geometry · Mathematics 2023-12-21 Georg Oberdieck , Aaron Pixton

We find explicit formulas for the Hilbert series of residual intersections of a scheme in terms of the Hilbert series of its conormal modules. In a previous paper we proved that such formulas should exist. We give applications to the…

Commutative Algebra · Mathematics 2015-09-30 Marc Chardin , David Eisenbud , Bernd Ulrich

We associate convex regions in R^n to m-primary graded sequences of subspaces, in particular m-primary graded sequences of ideals, in a large class of local algebras (including analytically irreducible local domains). These convex regions…

Commutative Algebra · Mathematics 2014-02-26 Kiumars Kaveh , A. G. Khovanskii

In this PhD thesis we propose an algorithmic approach to the study of the Hilbert scheme. Developing algorithmic methods, we also obtain general results about Hilbert schemes. In Chapter 1 we discuss the equations defining the Hilbert…

Algebraic Geometry · Mathematics 2012-02-21 Paolo Lella

The reach of ab initio many-body theories is rapidly extending over the nuclear chart. However, dealing fully with three-nucleon, possibly four-nucleon, interactions makes the solving of the A-body Schr\"odinger equation particularly…

Nuclear Theory · Physics 2020-03-18 Julien Ripoche , Alexander Tichai , Thomas Duguet

Let A be a finite abelian group. We set up an algebraic framework for studying A-equivariant complex-orientable cohomology theories in terms of a suitable kind of equivariant formal groups. We compute the equivariant cohomology of many…

Algebraic Topology · Mathematics 2008-11-14 Neil P. Strickland

In this paper, we study the higher codimensional cycle structure of the Hilbert scheme of three points in the projective plane. In particular, we compute all Chern (and Segre) classes of all tautological bundles on it and compute the nef…

Algebraic Geometry · Mathematics 2021-11-04 Tim Ryan , Alexander Stathis

We compute the generic infinitesimal Newton-Okounkov body at any point for some box-product polarizations on products of curves. This appears to be the first nontrivial description of such a body in arbitrary dimension.

Algebraic Geometry · Mathematics 2025-03-07 Mihai Fulger , Victor Lozovanu

The leitmotiv of this review is noncommutative principal U(1)-bundles and associated line bundles. In the first part I give a brief introduction to Hopf-Galois theory and its applications, from field extensions to principal group actions. I…

Quantum Algebra · Mathematics 2015-10-27 Francesco D'Andrea

Using the reviewed Riemann-Liouville fractional derivative we introduce the fractional osculator Lagrange space of k order and the main structures on it. The results are applied at the k order fractional prolongation of Lagrange, Finsler…

Differential Geometry · Mathematics 2007-09-14 Ion Doru Albu , Mihaela Neamtu , Dumitru Opris

We use basic algebraic topology and Ellingsrud-Stromme results on the Betti numbers of punctual Hilbert schemes of surfaces to compute a generating function for the Euler characteristic numbers of the Douady spaces of "n-points" associated…

Algebraic Geometry · Mathematics 2007-05-23 Mark Andrea A. de Cataldo

We construct families of Newton-Okounkov bodies for the free group character varieties and configuration spaces of any connected reductive group. We use this construction to give a proof that these spaces are Cohen-Macaulay.

Algebraic Geometry · Mathematics 2016-07-14 Christopher Manon

The main purpose of this paper is to prove the existence of the moduli space parameterizing the embedded curve singularities of $(k^N,0)$ with an admissible Hilbert polynomial and to study its basic properties.

Algebraic Geometry · Mathematics 2007-10-16 Juan Elias

For solving the $2\to 2,3$ three-body Coulomb scattering problem the Faddeev-Merkuriev integral equations in discrete Hilbert-space basis representation are considered. It is shown that as far as scattering amplitudes are considered the…

Nuclear Theory · Physics 2007-05-23 Z. Papp , S. L. Yakovlev