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Related papers: Newton-Okounkov bodies and Segre classes

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Given a reduced effective divisor D on a smooth variety X, we describe the generating function for the classes of the Hodge ideals of D in the Grothendieck group of coherent sheaves on X in terms of the motivic Chern class of the complement…

Algebraic Geometry · Mathematics 2020-07-08 Bradley Dirks , Mircea Mustata

In this article we provide another method for obtaining explicit formulas yielding counts of secant planes to a projective curve. We formulate the problem in terms of Segre classes of suitable bundles over the symmetric product of the curve…

Algebraic Geometry · Mathematics 2020-11-10 Mara Ungureanu

Classical objects in computational geometry are defined by explicit relations. Several years ago the pioneering works of T. Asano, J. Matousek and T. Tokuyama introduced "implicit computational geometry", in which the geometric objects are…

Computational Geometry · Computer Science 2018-02-08 Daniel Reem

In this note we introduce the problem of illumination of convex bodies in spherical spaces and solve it for a large subfamily of convex bodies. We derive from it a combinatorial version of the classical illumination problem for convex…

Metric Geometry · Mathematics 2020-10-13 Károly Bezdek , Zsolt Lángi

We define Euler-Hilbert-Sobolev spaces and obtain embedding results on homogeneous groups using Euler operators, which are homogeneous differential operators of order zero. Sharp remainder terms of $L^{p}$ and weighted Sobolev type and…

Functional Analysis · Mathematics 2018-01-24 Michael Ruzhansky , Durvudkhan Suragan , Nurgissa Yessirkegenov

In this paper we establish the coefficient bodies for a wide class of families of inverse functions. We also completely describe those functions that provide boundary points of that bodies in small dimensions. As an application we get sharp…

Complex Variables · Mathematics 2020-12-15 Mark Elin , Fiana Jacobzon

Let G be a connected reductive algebraic group. We prove that the string parametrization of a crystal basis for a finite dimensional irreducible representation of G extends to a natural valuation on the field of rational functions on the…

Algebraic Geometry · Mathematics 2015-11-04 Kiumars Kaveh

Let $R$ be a commutative Noetherian ring of dimension $d$. First, we define the "geometric subring" $A$ of a polynomial ring $R[T]$ of dimension $d+1$ (the definition of geometric subring is more general, see (1.2)). Then we prove that…

Commutative Algebra · Mathematics 2025-08-07 Sourjya Banerjee , Chandan Bhaumik , Husney Parvez Sarwar

We classify the orbits of elements of the tensor product spaces ${\mathbb{F}}^2\otimes {\mathbb{F}}^3 \otimes {\mathbb{F}}^3$ for all finite; real; and algebraically closed fields under the action of two natural groups. The result can also…

Combinatorics · Mathematics 2015-02-11 Michel Lavrauw , John Sheekey

In this paper, we give a description of the possible poles of the local zeta function attached to a complex or real analytic mapping in terms of a log-principalization of an ideal associated to the mapping. When the mapping is a…

Algebraic Geometry · Mathematics 2014-02-26 E. Leon-Cardenal , Willem Veys , W. A. Zuniga-Galindo

For classical groups SL(n), SO(n) and Sp(2n), we define uniformly geometric valuations on the corresponding complete flag varieties. The valuation in every type comes from a natural coordinate system on the open Schubert cell and is…

Algebraic Geometry · Mathematics 2019-02-08 Valentina Kiritchenko

Schur-Szego composition of polynomials of degree N introduces an interesting semigroup structure on polynomial spaces. In this note we show how it interacts with the stratification of polynomials according to the multiplicity of their zeros…

Classical Analysis and ODEs · Mathematics 2007-05-23 V. Kostov , B. Shapiro

We shall construct a 5-dimensional linear system of holomorphic automorphic forms on a 3-dimensional complex ball by applying Borcherds theory of automorphic forms. We shall show that this linear system gives the dual map from the Segre…

Algebraic Geometry · Mathematics 2011-10-07 Shigeyuki Kondo

We compute the (unbounded) Newton-Okounkov body of the Hilbert scheme of points on $\mathbb C^2$. We obtain an upper bound for the Newton-Okounkov body of the Hilbert scheme of points on any smooth toric surface. We conjecture that this…

Algebraic Geometry · Mathematics 2022-03-08 Ian Cavey

We consider the problem of approximating a semialgebraic set with a sublevel-set of a polynomial function. In this setting, it is standard to seek a minimum volume outer approximation and/or maximum volume inner approximation. As there is…

Optimization and Control · Mathematics 2022-05-30 James Guthrie

We prove via convex integration a result that allows to pass from a so-called subsolution of the isentropic Euler equations (in space dimension at least $2$) to exact weak solutions. The method is closely related to the incompressible…

Analysis of PDEs · Mathematics 2021-07-23 Tomasz Dębiec , Jack W. D. Skipper , Emil Wiedemann

We use the theory of Mori dream spaces to prove that the global Okounkov body of a Bott-Samelson variety with respect to a natural flag of subvarieties is rational polyhedral. In fact, we prove more generally that this holds for any Mori…

Algebraic Geometry · Mathematics 2015-03-31 David Schmitz , Henrik Seppänen

Considerations based on the known relation between different characteristic classes for singular hypersufaces suggest that a form of the `inclusion-exclusion' principle may hold for Segre classes. We formulate and prove such a principle for…

Algebraic Geometry · Mathematics 2012-04-10 Paolo Aluffi

In this paper, we study the geometry of various Hessenberg varieties in type A, as well as families thereof, with the additional goal of laying the groundwork for future computations of Newton-Okounkov bodies of Hessenberg varieties. Our…

Algebraic Geometry · Mathematics 2021-02-04 Hiraku Abe , Lauren DeDieu , Federico Galetto , Megumi Harada

Hecke expected that an explicit set of theta series obtained from maximal orders of the definite quaternion algebra over Q which is ramified at a prime N will be a basis of the space of holomorphic modular forms of weight 2 and level N.…

Algebraic Geometry · Mathematics 2019-04-19 Kennichi Sugiyama