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Related papers: Algebraic intersection, lengths and Veech surfaces

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In this survey, we discuss volumetric and combinatorial results concerning (mostly finite) intersections or unions of balls (mostly of equal radii) in the $d$-dimensional real vector space, mostly equipped with the Euclidean norm. Our first…

Metric Geometry · Mathematics 2025-12-30 Károly Bezdek , Zsolt Lángi , Márton Naszódi

We define an infinite series of translation coverings of Veech's double-n-gon for odd n greater or equal to 5 which share the same Veech group. Additionally we give an infinite series of translation coverings with constant Veech group of a…

Geometric Topology · Mathematics 2015-03-17 Myriam Finster

This text is a presentation of a set of formulae, first found by Vainsencher (for $\delta \leq 6$) and shortly after improved by Kleiman and Piene, counting $\delta$-nodal curves in a complete linear system on a smooth surface, if $\delta…

Algebraic Geometry · Mathematics 2025-10-09 Thomas Dedieu

We review the different notions about translation surfaces which are necessary to understand McMullen's classification of $GL_2^+(\mathbb{R})$-orbit closures in genus two. In Section 2 we recall the different definitions of a translation…

Dynamical Systems · Mathematics 2022-09-27 Daniel Massart

We extend Quine's bound on the number of self-intersection of curves with polynomial parameterization to the case of Laurent polynomials. As an application, we show that circle embeddings are dense among all maps from a circle to a plane…

Complex Variables · Mathematics 2022-12-20 Sergei Kalmykov , Leonid V. Kovalev

We prove the first polynomial bound on the number of monotonic homotopy moves required to tighten a collection of closed curves on any compact orientable surface, where the number of crossings in the curve is not allowed to increase at any…

Geometric Topology · Mathematics 2020-03-03 Hsien-Chih Chang , Arnaud de Mesmay

We study the properties of the maximal volume $k$-dimensional sections of the $n$-dimensional cube $[-1,1]^n$. We obtain a first order necessary condition for a $k$-dimensional subspace to be a local maximizer of the volume of such…

Metric Geometry · Mathematics 2020-04-21 Grigory Ivanov , Igor Tsiutsiurupa

The paper is a part of our program to build up a theory of couting immersed nodal curve on algebraic surfaces, as an enumerative Riemann-Roch theory (outlined in math.AG/0405113). In this paper, we discuss the excess intersection theory of…

Algebraic Geometry · Mathematics 2016-09-07 Ai-Ko Liu

We study the arithmetic of complete intersections in projective space over number fields. Our main results include arithmetic Torelli theorems and versions of the Shafarevich conjecture, as proved for curves and abelian varieties by…

Algebraic Geometry · Mathematics 2016-08-02 Ariyan Javanpeykar , Daniel Loughran

We study curves of negative self-intersection on algebraic surfaces. We obtain results for smooth complex projective surfaces X on the number of reduced, irreducible curves C of negative self-intersection C^2. The only known examples of…

Algebraic Geometry · Mathematics 2019-12-19 Th. Bauer , B. Harbourne , A. L. Knutsen , A. Küronya , S. Müller-Stach , X. Roulleau , T. Szemberg

We study intersections of exceptional curves on del Pezzo surfaces of degree 1, motivated by questions in arithmetic geometry. Outside characteristics 2 and 3, at most 10 exceptional curves can intersect in a point. We classify the…

Algebraic Geometry · Mathematics 2025-10-20 Julie Desjardins , Yu Fu , Kelly Isham , Rosa Winter

Recently R. Pandharipande, J. Solomon and R. Tessler initiated a study of the intersection theory on the moduli space of Riemann surfaces with boundary. They conjectured that the generating series of the intersection numbers is a specific…

Mathematical Physics · Physics 2020-02-24 A. Buryak

Aougab and Gaster [Math. Proc. Cambridge Philos. Soc. 174 (2023), 569-584] proved that any set of simple closed curves on the torus, where any two are non-homotopic and intersect at most k times, has a maximum size of $k+O(\sqrt{k}\log k)$.…

Combinatorics · Mathematics 2026-01-09 Igor Balla , Marek Filakovský , Bartłomiej Kielak , Daniel Kráľ , Niklas Schlomberg

We introduce a coarse perspective on relations of the $SU(2)$-Witten-Reshetikhin-Turaev TQFT, the Weil-Petersson geometry of the Teichm\"uller space, and volumes of hyperbolic 3-manifolds. Using data from the asymptotic expansions of the…

Geometric Topology · Mathematics 2025-12-11 Renaud Detcherry , Efstratia Kalfagianni

We study arc graphs and curve graphs for surfaces of infinite topological type. First, we define an arc graph relative to a finite number of (isolated) punctures and prove that it is a connected, uniformly hyperbolic graph of infinite…

Geometric Topology · Mathematics 2015-11-11 Javier Aramayona , Ariadna Fossas , Hugo Parlier

We construct examples in any odd dimension of contact manifolds with finite and non-zero algebraic torsion (in the sense of Latschev-Wendl), which are therefore tight and do not admit strong symplectic fillings. We prove that Giroux torsion…

Symplectic Geometry · Mathematics 2021-01-29 Agustin Moreno

Bezout's theorem gives us the degree of intersection of two properly intersecting projective varieties. As two curves in P^3 never intersect properly, Bezout's theorem cannot be directly used to bound the number of intersection points of…

Algebraic Geometry · Mathematics 2014-03-13 R. Hartshorne , R. M. Miró-Roig

This is an expository paper concerning topics on rational points of curves defined over finite fields based on a paper by St"ohr and Voloch.

Algebraic Geometry · Mathematics 2007-05-23 Fernando Torres

Convex algebraic geometry concerns the interplay between optimization theory and real algebraic geometry. Its objects of study include convex semialgebraic sets that arise in semidefinite programming and from sums of squares. This article…

Optimization and Control · Mathematics 2010-06-28 Philipp Rostalski , Bernd Sturmfels

Given two distinct reduced, irreducible curves of given degrees, contained in projective space but whose union is not contained in a hyperplane, what is the largest number of points of intersection they can have? When the projective space…