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Related papers: Boundedness and volume of generalised pairs

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We introduce and study the restricted volume of a divisor along a subvariety. Our main result is a description of the irreducible components of the augmented base locus by the vanishing of the restricted volume.

Algebraic Geometry · Mathematics 2008-01-10 Lawrence Ein , Robert Lazarsfeld , Mircea Mustata , Michael Nakamaye , Mihnea Popa

In this paper, we establish a structure theorem for minimal projective klt varieties $X$ that satisfiy Miyaoka's equality $3c_2(X) = c_1(X)^2$. Specifically, we prove that the canonical divisor $K_X$ is semi-ample and that the Kodaira…

Algebraic Geometry · Mathematics 2025-10-23 Masataka Iwai , Shin-ichi Matsumura , Niklas Müller

Let $S$ be a finite subset of a compact connected Riemann surface $X$ of genus $g \geq 2$. Let $\cat{M}_{lc}(n,d)$ denote the moduli space of pairs $(E,D)$, where $E$ is a holomorphic vector bundle over $X$ and $D$ is a logarithmic…

Algebraic Geometry · Mathematics 2020-06-02 Anoop Singh

We reduce Iitaka's subadditivity conjecture for the logarithmic Kodaira dimension to a special case of the generalized abundance conjecture by establishing an Iitaka type inequality for Nakayama's numerical Kodaira dimension. Our proof…

Algebraic Geometry · Mathematics 2016-02-09 Osamu Fujino

The main purpose of this paper is to introduce a new approach to study families of nodal curves on projective threefolds. Precisely, given $X$ a smooth projective threefold, $\E$ a rank-two vector bundle on $X$, $L$ a very ample line bundle…

Algebraic Geometry · Mathematics 2007-05-23 Flaminio Flamini

In this work we study families of pairs of window functions and lattices which lead to Gabor frames which all possess the same frame bounds. To be more precise, for every generalized Gaussian $g$, we will construct an uncountable family of…

Functional Analysis · Mathematics 2018-06-12 Markus Faulhuber

For each i = 1, ..., n constructions are given for convex bodies K and L in n-dimensional Euclidean space such that each rank i orthogonal projection of K can be translated inside the corresponding projection of L, even though K has…

Metric Geometry · Mathematics 2009-05-20 Daniel A. Klain

Let $L$ be any finite distributive lattice and $B$ be any boolean predicate defined on $L$ such that the set of elements satisfying $B$ is a sublattice of $L$. Consider any subset $M$ of $L$ of size $k$ of elements of $L$ that satisfy $B$.…

Discrete Mathematics · Computer Science 2020-01-10 Vijay K. Garg

Let $G$ be a connected reductive group acting on a complex vector space $V$ and projective space ${\mathbb P}V$. Let $x\in V$ and ${\cal H}\subseteq {\cal G}$ be the Lie algebra of its stabilizer. Our objective is to understand points…

Representation Theory · Mathematics 2022-01-04 Bharat Adsul , Milind Sohoni , K V Subrahmanyam

For the moduli space of unmarked convex $\mathbb{RP}^2$ structures on the surface $S_{g,m}$ with negative Euler characteristic, we investigate the subsets of the moduli space defined by the notions like boundedness of projective invariants,…

Differential Geometry · Mathematics 2020-01-28 Zhe Sun

In this paper we prove that among pairs $K,\,K' \subset \mathbb{C}$ of conformal dynamically defined Cantor sets with sum of Hausdorff dimensions $HD(K)+HD(K')>2$, there is an open and dense subset of such pairs verifying…

Dynamical Systems · Mathematics 2021-08-12 Hugo Araújo , Carlos Gustavo Moreira , Alex Zamudio Espinosa

We study the normalizations of non-normal stable families of slc surfaces over an excellent DVR. In mixed characteristic, we establish a gluing statement that is relevant for the properness of the moduli space of such surfaces. We also…

Algebraic Geometry · Mathematics 2024-01-09 Quentin Posva

Suppose L and M are full-rank lattices in Euclidean space, such that vol(L) < vol(M). Answering a question of Han and Wang from 2001, we show how to construct a bounded measurable set F (we can even take F to be a finite union of polytopes)…

Classical Analysis and ODEs · Mathematics 2025-09-25 Sigrid Grepstad , Mihail N. Kolountzakis , Emmanuil Spyridakis

We develop a probabilistic framework for large-scale dimension bounds in metric geometry, based on padded decompositions, randomized ball carving on net graphs, and the Lov\'asz Local Lemma. For metric measure spaces with volume doubling…

Metric Geometry · Mathematics 2026-05-18 Jing Yu , Xingyu Zhu

In this paper we study families of projective manifolds with good minimal models. After constructing a suitable moduli functor for polarized varieties with canonical singularities, we show that, if not birationally isotrivial, the base…

Algebraic Geometry · Mathematics 2023-08-21 Behrouz Taji

We use the theory of twisted stable maps to Deligne-Mumford stacks to construct compactifications of the moduli space of pairs $(X \to C, S + F)$ where $X \to C$ is a fibered surface, $S$ is a sum of sections, $F$ is a sum of marked fibers,…

Algebraic Geometry · Mathematics 2016-12-23 Kenneth Ascher , Dori Bejleri

Let $M^d$ denote the $d$-dimensional Euclidean, hyperbolic, or spherical space. The $r$-dual set of given set in $M^d$ is the intersection of balls of radii $r$ centered at the points of the given set. In this paper we prove that for any…

Metric Geometry · Mathematics 2018-02-12 Karoly Bezdek

We extended the study of the linear fractional self maps (e.g. by Cowen-MacCluer and Bisi-Bracci on the unit balls) to a much more general class of domains, called generalized type-I domains, which includes in particular the classical…

Complex Variables · Mathematics 2019-10-15 Yun Gao , Sui-Chung Ng , Aeryeong Seo

A natural construction of the logarithmic extension of the M(2,p) minimal models is presented, which generalises our previous model [0708.0802] of percolation (p=3). Its key aspect is the replacement of the minimal model irreducible modules…

High Energy Physics - Theory · Physics 2008-11-26 Pierre Mathieu , David Ridout

This paper studies a family of generalized surface quasi-geostrophic (SQG) equations for an active scalar $\theta$ on the whole plane whose velocities have been mildly regularized, for instance, logarithmically. The well-posedness of these…

Analysis of PDEs · Mathematics 2021-09-10 Michael S. Jolly , Anuj Kumar , Vincent R. Martinez