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Related papers: Boundedness and volume of generalised pairs

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We prove that for any two lattices $L, M \subseteq \mathbb{R}^d$ of the same volume there exists a measurable, bounded, common fundamental domain of them. In other words, there exists a bounded measurable set $E \subseteq \mathbb{R}^d$ such…

Classical Analysis and ODEs · Mathematics 2025-12-01 Sigrid Grepstad , Mihail N. Kolountzakis

We present a new proof of a theorem of Chen and Jiang: for any integer $n>1$, there is a constant $K_n>0$ such that every smooth projective $n$-fold $X$ with $\operatorname{vol}(X)>K_n$ has either the stable birational $2$-canonical map or…

Algebraic Geometry · Mathematics 2025-09-23 Pengjin Wang

We study the reliability of the Two-Step moduli stabilization in the type-IIB Large Volume Scenarios with matter and gauge interactions. The general analysis is based on a family of N=1 Supergravity models with a factorizable Kaehler…

High Energy Physics - Theory · Physics 2011-07-06 Diego Gallego

We prove a version of Jonsson-Musta\c{t}\v{a}'s Conjecture, which says for any graded sequence of ideals, there exists a quasi-monomial valuation computing its log canonical threshold. As a corollary, we confirm Chi Li's conjecture that a…

Algebraic Geometry · Mathematics 2019-11-19 Chenyang Xu

In this paper we explore questions regarding the Minkowski sum of the boundaries of convex sets. Motivated by a question suggested to us by V.~Milman regarding the volume of $\partial K+ \partial T$ where $K$ and $T$ are convex bodies, we…

Metric Geometry · Mathematics 2024-07-30 Shiri Artstein-Avidan , Tomer Falah , Boaz A. Slomka

Given a Fano type log Calabi-Yau fibration $(X,B)\to Z$ with $(X,B)$ being $\epsilon$-lc, the first author in \cite{Bi23} proved that the generalised pair $(Z,B_Z+M_Z)$ given by the canonical bundle formula is generalised $\delta$-lc where…

Algebraic Geometry · Mathematics 2024-12-13 Caucher Birkar , Bingyi Chen

We prove several results of the following type: given finite dimensional normed space V there exists another space X with log (dim X) = O(log (dim V)) and such that every subspace (or quotient) of X, whose dimension is not "too small,"…

Functional Analysis · Mathematics 2007-05-23 Stanislaw J. Szarek , Nicole Tomczak-Jaegermann

We prove an arithmetic regularity lemma for stable subsets of finite abelian groups, generalising our previous result for high-dimensional vector spaces over finite fields of prime order. A qualitative version of this generalisation was…

Logic · Mathematics 2018-05-18 C. Terry , J. Wolf

We are concerned with the barotropic compressible Navier-Stokes system in a bounded domain of $\mathbb{R}^d$ (with $d\geq2$). In a critical regularity setting, we establish local well-posedness for large data with no vacuum and global…

Analysis of PDEs · Mathematics 2022-01-12 Raphaël Danchin , Patrick Tolksdorf

Rational pairs, recently introduced by Koll\'ar and Kov\'acs, generalize rational singularities to pairs $(X,D)$. Here $X$ is a normal variety and $D$ is a reduced divisor on $X$. Integral to the definition of a rational pair is the notion…

Algebraic Geometry · Mathematics 2014-11-18 Lindsay Erickson

Let $G$ be a group and $N$ a normal subgroup of $G$. We study the large scale behavior, not the exact values themselves, of the stable mixed commutator length $scl_{G,N}$ on the mixed commutator subgroup $[G,N]$; when $N=G$, $scl_{G,N}$…

We study open sets $\mathcal{P}$ in normed spaces $X$ attaining a large volume while avoiding pairs of points at integral distance. The proposed task is to find sharp inequalities for the maximum possible $d$-dimensional volume. This…

Metric Geometry · Mathematics 2014-02-03 Sascha Kurz , Valery Mishkin

Persistence diagrams (PDs) are used as signatures of point cloud data. Two clouds of points can be compared using the bottleneck distance d_B between their PDs. A potential drawback of this pipeline is that point clouds sampled from…

Computational Geometry · Computer Science 2024-08-30 Nathan H. May , Bala Krishnamoorthy , Patrick Gambill

In this paper we discuss a new discretization for the Biot equations. The discretization treats the coupled system of deformation and flow directly, as opposed to combining discretizations for the two separate sub-problems. The coupled…

Numerical Analysis · Mathematics 2017-05-19 Jan Martin Nordbotten

We prove that for any $K$ and $d$, there exist, for all sufficiently large admissible $v$, a pairwise balanced design PBD$(v,K)$ of dimension $d$ for which all $d$-point-generated flats are bounded by a constant independent of $v$. We also…

Combinatorics · Mathematics 2014-10-29 Nicholas M. A. Benson , Peter J. Dukes

Following the work of Totaro and Pereira, we study sufficient conditions under which collections of pairwise-disjoint divisors on a variety over an algebraically closed field are contained in the fibers of a morphism to a curve. We prove…

Algebraic Geometry · Mathematics 2016-01-21 Fedor A. Bogomolov , Alena Pirutka , Aaron Michael Silberstein

The purpose of this paper is to investigate the behaviour of certain asymptotic invariants of line bundles on projective surfaces. In particular, we describe the volume of line bundles and their destabilizing numbers.

Algebraic Geometry · Mathematics 2007-05-23 Thomas Bauer , Alex Kuronya , Tomasz Szemberg

We study the lower bound algebras generated by the generalized projective cluster variables of acyclic generalized cluster algebras of geometric types. We prove that this lower bound algebra coincides with the corresponding generalized…

Rings and Algebras · Mathematics 2024-01-23 Junyuan Huang , Xueqing Chen , Fan Xu , Ming Ding

We investigate the sets of uniform limits $A(\bar{B}_n)$, $A(\bar{D}^I)$ of polynomials on the closed unit ball $\bar{B}_n$ of $\mathbb{C}^n$ and on the cartesian product $\bar{D}^I$ where $I$ is an arbitrary set and $\bar{D}$ is the closed…

Complex Variables · Mathematics 2013-04-22 K. Makridis , V. Nestoridis

Let $(X,\Delta)$ be a projective log canonical pair such that $\Delta \geq A$ where $A \geq 0$ is an ample $\mathbb{R}$-divisor. We prove that either $(X,\Delta)$ has a good minimal model or a Mori fibre space. Moreover, if $X$ is…

Algebraic Geometry · Mathematics 2019-06-04 Zhengyu Hu
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