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相关论文: Newton--Okounkov bodies of curve classes

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In this article, we study Newton-Okounkov bodies on projective vector bundles over curves. Inspired by Wolfe's estimates used to compute the volume function on these varieties, we compute all Newton-Okounkov bodies with respect to linear…

代数几何 · 数学 2018-10-16 Pedro Montero

The Newton--Okounkov body of a big divisor D on a smooth surface is a numerical invariant in the form of a convex polygon. We study the geometric significance of the shape of Newton--Okounkov polygons of ample divisors, showing that they…

代数几何 · 数学 2022-03-16 Joaquim Roé , Tomasz Szemberg

The theory of Newton-Okounkov bodies attaches a convex body to a line bundle on a variety equipped with flag of subvarieties. This convex body encodes the asymptotic properties of sections of powers of the line bundle. In this paper, we…

代数几何 · 数学 2016-11-15 Eric Katz , Stefano Urbinati

We generalize the theory of Newton-Okounkov bodies of big divisors to the case of graded linear series. One of the results is the generalization of slice formulas and the existence of generic Newton-Okounkov bodies for birational graded…

代数几何 · 数学 2018-01-16 Georg Merz

The theory of Newton-Okounkov bodies is a generalization of that of Newton polytopes for toric varieties, and it gives a systematic method of constructing toric degenerations of projective varieties. In this paper, we study Newton-Okounkov…

表示论 · 数学 2025-07-25 Naoki Fujita , Hironori Oya

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.

代数几何 · 数学 2025-03-07 Mihai Fulger , Victor Lozovanu

We describe, under certain conditions, the Newton-Okounkov body of a Bott-Samelson variety as a lattice polytope defined by an explicit list of inequalities. The valuation that we use to define the Newton-Okounkov body is different from…

代数几何 · 数学 2018-06-20 Megumi Harada , Jihyeon Jessie Yang

This is a survey article on Newton-Okounkov bodies in projective geometry focusing on the relationship between positivity of divisors and Newton-Okounkov bodies.

代数几何 · 数学 2017-03-30 Alex Küronya , Victor Lozovanu

We study topological properties of functions on Okounkov bodies as introduced by Boucksom-Chen and Witt-Nystr\"om. We note that they are continuous over the whole Okounkov body whenever the body is polyhedral, on the other hand, we exhibit…

代数几何 · 数学 2013-02-07 Alex Küronya , Catriona Maclean , Tomasz Szemberg

In the setting of Arakelov geometry over adelic curves, we introduce the $\chi$-volume function and show some general properties. This article is dedicated to talk about the continuity of $\chi$-volume function. By discussing its…

代数几何 · 数学 2020-09-21 Wenbin Luo

Towards the boundary of the big cone, Newton-Okounkov bodies do not vary continuously and in fact the body of a boundary class is not well defined. Using the global Okounkov body one can nonetheless define a numerical invariant, the…

代数几何 · 数学 2016-07-14 William F. Sawin , David Schmitz

This is the first part of our work on Zariski decomposition structures, where we study Zariski decompositions using Legendre-Fenchel type transforms. In this way we define a Zariski decomposition for curve classes. This decomposition…

代数几何 · 数学 2016-07-20 Brian Lehmann , Jian Xiao

Generalizing the notion of Newton polytope, we define the Newton-Okounkov body, respectively, for semigroups of integral points, graded algebras, and linear series on varieties. We prove that any semigroup in the lattice Z^n is…

代数几何 · 数学 2012-03-30 Kiumars Kaveh , A. G. Khovanskii

In his work on log-concavity of multiplicities, Okounkov showed in passing that one could associate a convex body to a linear series on a projective variety, and then use convex geometry to study such linear systems. Although Okounkov was…

代数几何 · 数学 2008-05-30 Robert Lazarsfeld , Mircea Mustata

A Newton-Okounkov convex body is a convex body constructed from a projective variety with a valuation on its homogeneous coordinate ring; this generalizes a Newton polytope for a toric variety. This convex body has various kinds of…

表示论 · 数学 2016-02-24 Naoki Fujita

The main goal of this article is to construct "arithmetic Okounkov bodies" for an arbitrary pseudo-effective (1,1)-class $\alpha$ on a K\"ahler manifold. Firstly, using Boucksom's divisorial Zariski decompositions for pseudo-effective…

代数几何 · 数学 2015-03-03 Ya Deng

Given a smooth projective algebraic surface X, a point O in X and a big divisor D on X, we consider the set of all Newton-Okounkov bodies of D with respect to valuations of the field of rational functions of X centred at O, or,…

代数几何 · 数学 2016-02-08 C. Ciliberto , M. Farnik , A. Küronya , V. Lozovanu , J. Roé , C. Shramov

We develop new methods of both constructing and obstructing symplectic embeddings into non-toric rational surfaces using the theory of Newton-Okoukov bodies. Applications include sharp embedding results for concave toric domains into…

辛几何 · 数学 2024-02-21 Julian Chaidez , Ben Wormleighton

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.

代数几何 · 数学 2016-07-14 Christopher Manon

We provide the differential equations that generalize the Newtonian N-body problem of celestial mechanics to spaces of constant Gaussian curvature, k, for all k real. In previous studies, the equations of motion made sense only for k…

动力系统 · 数学 2019-08-15 Florin Diacu
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