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Related papers: Algebraic volumes of divisors

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The volume of a Cartier divisor is an asymptotic invariant, which measures the rate of growth of sections of powers of the divisor. It extends to a continuous, homogeneous, and log-concave function on the whole N\'eron--Severi space, thus…

Algebraic Geometry · Mathematics 2012-10-02 Alex Kuronya , Victor Lozovanu , Catriona Maclean

We introduce an adelic Cartier divisor over a trivially valued field and discuss the bigness of it. For bigness, we give the integral representation of the arithmetic volume and prove the existence of limit of it. Moreover, we show that the…

Algebraic Geometry · Mathematics 2019-05-15 Tomoya Ohnishi

In this paper we study a notion of volume for Cartier divisors on arbitrary blow-ups of normal complex algebraic varieties of dimension greater than one, with a distinguished point. We apply this to study a volume for normal isolated…

Algebraic Geometry · Mathematics 2011-05-17 Mihai Fulger

We give an algebraic construction of the positive products of pseudo-effective classes first introduced by Boucksom, Demailly, Paun and Peternell, and use them to prove that the volume function on the Neron-Severi space of a projective…

Algebraic Geometry · Mathematics 2007-09-04 Sebastien Boucksom , Charles Favre , Mattias Jonsson

Let $X$ be a normal projective variety defined over an algebraically closed field and let $Z$ be a subvariety. Let $D$ be an $\mathbb R$-Cartier $\mathbb R$-divisor on $X$. Given an expression $(\ast) \ D \sim_{\mathbb R} t_1 H_1 + \ldots +…

Algebraic Geometry · Mathematics 2015-10-28 Angelo Felice Lopez

In this paper, we show that the arithmetic volume function defined on the space of pairs of adelic R-Cartier divisors and base conditions is differentiable at a big pair, and that its derivative is given by an arithmetic restricted positive…

Algebraic Geometry · Mathematics 2022-03-24 Hideaki Ikoma

In the previous paper [7], we introduced a notion of pairs of adelic R-Cartier divisors and R-base conditions. The purpose of this paper is to propose an extended notion of adelic R-Cartier divisors that we call an l1-adelic R-Cartier…

Algebraic Geometry · Mathematics 2023-02-22 Hideaki Ikoma

We give an example that the volume of an $\mathbb{R}$-divisor on a family of complex smooth surfaces jumps at infinite many prime divisors in the base. Our example follows the construction in \cite{1}.

Algebraic Geometry · Mathematics 2013-10-02 Lue Pan , Junliang Shen

Consider a one-parameter family of algebraic varieties degenerating to a reducible one. Our main result is a formula for the fundamental cycle of the limit subscheme of any family of effective Cartier divisors. The formula expresses this…

Algebraic Geometry · Mathematics 2009-05-12 Eduardo Esteves

Given a many-body system, we define a quantity, the Codification Volume of an operator algebra, which measures the size of the subspace with whom a given algebra is correlated. We explicitly calculate it for some limit cases, including…

Quantum Physics · Physics 2014-10-24 Javier M. Magan , Simone Paganelli

We study certain modules over the algebra of a Cartier divisor on a scheme. Using these modules, we present an inductive method for studying finite generation properties of algebras and modules. In the context of the minimal model program,…

Algebraic Geometry · Mathematics 2011-05-05 Caucher Birkar

The problem of determining the volume of a tubular neighbourhood has a long and rich history. Bounds on the volume of neighbourhoods of algebraic sets have turned out to play an important role in the probabilistic analysis of condition…

Numerical Analysis · Mathematics 2013-10-01 Martin Lotz

In this note, we study the differentiability of the arithmetic volumes along arithmetic R-divisors, and give some equality conditions for the Brunn-Minkowski inequality for arithmetic volumes over the cone of nef and big arithmetic…

Algebraic Geometry · Mathematics 2014-08-15 Hideaki Ikoma

We prove that every indefinite quadratic form with non-negative integer coefficients is the volume polynomial of a pair of lattice polygons. This solves the discrete version of the Heine-Shephard problem for two bodies in the plane. As an…

Algebraic Geometry · Mathematics 2024-10-16 Ivan Soprunov , Jenya Soprunova

The motivation for this paper is to detect when an irreducible projective variety V is not toric. We do this by analyzing a Lie group and a Lie algebra associated to V. If the dimension of V is strictly less than the dimension of the above…

Algebraic Geometry · Mathematics 2025-12-17 Aida Maraj , Arpan Pal

We introduce the positive intersection product in Arakelov geometry and prove that the arithmetic volume function is continuously differentiable. As applications, we compute the distribution function of the asymptotic measure of a Hermitian…

Algebraic Geometry · Mathematics 2014-02-26 Huayi Chen

For a smooth manifold $X$ equipped with a volume form, let $\dL$ be the Lie algebra of volume preserving smooth vector fields on $X$. A. Lichnerowicz proved that the abelianization of $\dL$ is a finite-dimensional vector space, and that its…

Algebraic Geometry · Mathematics 2014-07-30 Fabrizio Donzelli

Our main result is that any real cubic algebraic number has a continued fraction expansion with polynomial coefficients. Some generalizations are mentioned.

Number Theory · Mathematics 2025-02-28 Henri Cohen

In this paper we prove several theorems about abelian varieties over finite fields by studying the set of monic real polynomials of degree 2n all of whose roots lie on the unit circle. In particular, we consider a set V_n of vectors in R^n…

Number Theory · Mathematics 2007-05-23 Stephen A. DiPippo , Everett W. Howe

The purpose of this paper is two-fold. We first prove a series of results, concerned with the notion of Zariski multiplicity, mainly for non-singular algebraic curves. These results are required in the paper "A Theory of Branches for…

Algebraic Geometry · Mathematics 2007-05-23 Tristram de Piro
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