English
Related papers

Related papers: Intersection properties of finite disk collections

200 papers

The setting is a square-tiled surface X. We study the quantity KVol, defined as the supremum over all pairs of closed curves, of their algebraic intersection divided by the product of their length, times the volume of X (so as to make it…

Dynamical Systems · Mathematics 2022-09-27 Smaïl Cheboui , Arezki Kessi , Daniel Massart

We present a comprehensive collection of ultracold three-body collisions properties near overlapping Feshbach resonances. Our results incorporate variations of all scattering lengths and demonstrate novel collisional behavior, such as…

Atomic Physics · Physics 2015-05-13 J. P. D'Incao , B. D. Esry

Let $X$ be an $n$-dimensional manifold and $V_1,\ldots,V_n\subset C^\infty(X,\mathbb R)$ finite-dimensional vector spaces. For systems of equations $\{f_i = a_i\colon\: f_i\in V_i,\:a_i \in\mathbb R,\:i=1,\ldots,n\}$ we discover a…

Symplectic Geometry · Mathematics 2019-10-11 Boris Kazarnovskii

The "finite intersection property" for bifunctions is introduced and its relationship with generalized monotonicity properties is studied. Some results concerning existence of solution for (quasi-)equilibrium problems are established and…

Optimization and Control · Mathematics 2020-02-13 John Cotrina , Anton Svensson

In this paper, we present an algorithm to compute the filtered generalized \v{C}ech complex for a finite collection of disks in the plane, which don't necessarily have the same radius. The key step behind the algorithm is to calculate the…

Computational Geometry · Computer Science 2019-04-15 Jesus F. Espinoza , Rosalia Hernandez-Amador , Hector A. Hernandez , Beatriz Ramonetti-Valencia

The article proposes a new method for finding the triangle-triangle intersection in 3D space, based on the use of computer graphics algorithms -- cutting off segments on the plane when moving and rotating the beginning of the coordinate…

Graphics · Computer Science 2022-10-28 Irina Bolodurina , Georgii Nigmatulin , Denis Parfenov

We study a general smallest intersecting ball problem and its soft-margin variant in high-dimensional Euclidean spaces for input objects that are compact and convex. These two problems link and unify a series of fundamental problems in…

Computational Geometry · Computer Science 2025-05-27 Jiaqi Zheng , Tiow-Seng Tan

(Abridged) A variety of formation scenarios was proposed to explain the diversity of properties observed in bulges. Studying their intrinsic shape can help in constraining the dominant mechanism at the epochs of their assembly. The…

Astrophysics · Physics 2015-05-13 J. Mendez-Abreu , J. A. L. Aguerri , E. M. Corsini , E. Simonneau

For Poisson particle processes in hyperbolic space we introduce and study concepts analogous to the intersection density and the mean visible volume, which were originally considered in the analysis of Boolean models in Euclidean space. In…

Probability · Mathematics 2025-12-24 Tillmann Bühler , Daniel Hug , Christoph Thaele

Mass partition problems describe the partitions we can induce on a family of measures or finite sets of points in Euclidean spaces by dividing the ambient space into pieces. In this survey we describe recent progress in the area in addition…

Combinatorics · Mathematics 2020-12-04 Edgardo Roldán-Pensado , Pablo Soberón

We show that the Masur-Veech volumes and area Siegel-Veech constants can be obtained by intersection numbers on the strata of Abelian differentials with prescribed orders of zeros. As applications, we evaluate their large genus limits and…

Algebraic Geometry · Mathematics 2023-07-19 Dawei Chen , Martin Möller , Adrien Sauvaget , Don Zagier

We give short and simple proofs of what seem to be folklore results: * the maximum cardinality of the intersection of a lattice cube with an affine subspace; * the minimum number of affine subspaces needed to cover a lattice cube.

Combinatorics · Mathematics 2019-09-13 Lê Thành Dũng Nguyên

We discuss the feasibility of the embedded cluster approach for it ab-initio calculations of charge exchange between ions and a LiF surface. We show that the discrete density of valence states in embedded clusters converges towards the…

Materials Science · Physics 2013-08-07 Ludger Wirtz , Michal Dallos , Hans Lischka , Joachim Burgdorfer

We consider the intersections of fractal k-cubes of order n and intersections of their respective opposite l-faces. The main result of the paper is the theorem on representation of such intersection as the attractor of a graph-directed…

Metric Geometry · Mathematics 2024-10-07 Andrei Tetenov , Dmitry Drozdov

We study infinite Euclidean distance discriminants of algebraic varieties, defined as the loci of data points whose fibers under the second projection from the Euclidean distance correspondence are positive-dimensional. In particular, these…

Algebraic Geometry · Mathematics 2025-09-25 Felix Rydell , Emil Horobet

This paper is the first part in our series on the influence of tidal interactions and minor mergers on the radial and vertical disk structure of spiral galaxies. We report on the sample selection, our observations, and data reduction.…

Astrophysics · Physics 2010-01-25 U. Schwarzkopf , R. -J. Dettmar

We prove that a typical compact set does not contain any similar copy of a given pattern. We also prove that a typical compact set of $[0,1]^{d} (d\geq 2)$ intersects any $(d-1)$-dimensional plane in at most $d$ points. We study the…

Classical Analysis and ODEs · Mathematics 2015-12-16 Changhao Chen

We consider a classical field configuration, corresponding to intersection of two domain walls in a supersymmetric model, where the field profile for two parallel walls at a finite separation is known explicitly. An approximation to the…

High Energy Physics - Theory · Physics 2008-11-26 S. V. Troitsky , M. B. Voloshin

This note initiates an investigation of packing links into a region of Euclidean space to achieve a maximal density subject to geometric constraints. The upper bounds obtained apply only to the class of homotopically essential links and…

Geometric Topology · Mathematics 2024-01-31 Michael H. Freedman

We provide an overview of experiments exploring resonances in the collision of ultracold clouds of atoms. Using a laser-based accelerator that capitalizes on the energy resolution provided by the ultracold atomic setting, we unveil…

Quantum Gases · Physics 2024-06-05 Matthew Chilcott , Samyajit Gayen , James Croft , Ryan Thomas , Niels Kjærgaard