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We associate to any given finite set of valuations on the polynomial ring in two variables over an algebraically closed field a numerical invariant whose positivity characterizes the case when the intersection of their valuation rings has…

Algebraic Geometry · Mathematics 2015-06-12 Junyi Xie

In this note, we investigate the maximal number of intersection points of a line with the contour of hypersurface amoebas in $\mathbb{R}^n$. We define the latter number to be the $\mathbb{R}$-degree of the contour. We also investigate the…

Algebraic Geometry · Mathematics 2019-05-21 Lionel Lang , Boris Shapiro , Eugenii Shustin

Given a pair of translation surfaces it is very difficult to determine whether they are supported on the same algebraic curve. In fact, there are very few examples of such pairs. In this note we present infinitely many examples of finite…

Geometric Topology · Mathematics 2021-04-20 Eduard Duryev , Leonid Monin

In this paper we describe all rotation $H$-hypersurfaces in $H^n \times R$ and use them as barriers to prove existence and characterization of certain vertical $H$-graphs and to give symmetry and uniqueness results for compact…

Differential Geometry · Mathematics 2019-10-07 Pierre Bérard , Ricardo Sa Earp

In the half-space model of the hyperbolic three space with the hyperbolic metric, this same space can be seen as the Lie group, hence, a translation surface is a surface that is given by the product of two curves $\alpha$ and $\beta$ in…

Differential Geometry · Mathematics 2025-11-27 Tarcios Andrey Ferreira , João Paulo dos Santos

We consider saddle connections on a translation surface in a hyperelliptic connected component of a stratum that do not intersect the interior of a distinguished saddle connection. For this restricted set of saddle connections, we show that…

Dynamical Systems · Mathematics 2026-01-23 David Aulicino , Howard Masur , Huiping Pan , Weixu Su

In this paper we continue to investigate the systolic landscape of translation surfaces started in [CHMW]. We show that there is an infinite sequence of surfaces $(S_{g_k})_k$ of genus $g_k$, where $g_k \to \infty$ with large systoles. On…

Differential Geometry · Mathematics 2024-03-25 Peter Buser , Eran Makover , Bjoern Muetzel

A translation surface of Euclidean space $\r^3$ is the sum of two regular curves $\alpha$ and $\beta$, called the generating curves. In this paper we classify the minimal translation surfaces of $\r^3$ and we give a method of construction…

Differential Geometry · Mathematics 2019-12-18 Thomas Hasanis , Rafael López

We study projective curves and hypersurfaces defined over a finite field that are tangent to every member of a class of low-degree varieties. Extending 2-dimensional work of Asgarli, we first explore the lowest degrees attainable by smooth…

Algebraic Geometry · Mathematics 2024-09-10 Charlie Bruggemann , Vera Choi , Brian Freidin , Jaedon Whyte

For each stratum of the space of translation surfaces, we introduce an infinite translation surface containing in an appropriate manner a copy of every translation surface of the stratum. Given a translation surface $(X, \omega)$ in the…

Geometric Topology · Mathematics 2021-08-26 Brandon Edwards , Slade Sanderson , Thomas A. Schmidt

A translation structure on a surface is an atlas of charts to the plane so that the transition functions are translations. We allow our surfaces to be non-compact and infinite genus. We endow the space of all pointed surfaces equipped with…

Geometric Topology · Mathematics 2013-10-22 W. Patrick Hooper

Flat surfaces that correspond to meromorphic $1$-forms or to meromorphic quadratic differentials containing poles of order two and higher are surfaces of infinite area. We classify groups that appear as Veech groups of translation surfaces…

Geometric Topology · Mathematics 2017-12-29 Guillaume Tahar

Amoebas are projections of complex algebraic varieties in the algebraic torus under a Log-absolute value map, which have connections to various mathematical subjects. While amoebas of hypersurfaces have been intensively studied in recent…

Combinatorics · Mathematics 2017-02-07 Martina Juhnke-Kubitzke , Timo de Wolff

Algebraic hyperbolicity serves as a bridge between differential geometry and algebraic geometry. Generally, it is difficult to show that a given projective variety is algebraically hyperbolic. However, it was established recently that a…

Algebraic Geometry · Mathematics 2024-10-01 Sharon Robins

We study translation minimal hypersurfaces and separable minimal hypersurfaces in the ($n+1$)-space with $2m$-norm.

Differential Geometry · Mathematics 2025-08-19 Makoto Sakaki , Ryota Tanaka

We discuss the optimization problem for minimizing the $(n-1)$-volume of the intersection of a convex cone $K$ in $\Bbb R^n$ with a hyperplane through a given point, first considered in \cite{We}. We give a geometric characterization of the…

Metric Geometry · Mathematics 2025-10-27 Oleg Mushkarov , Nikolai Nikolov

To a compact oriented surface of genus at most one with boundary, we associate a quantized $K$-theoretic Coulomb branch in the sense of Braverman, Finkelberg, and Nakajima. In the case where the surface is a three- or four-holed sphere or a…

Representation Theory · Mathematics 2024-01-15 Dylan G. L. Allegretti , Peng Shan

We show that the algebraic intersection form of hyperbolic surfaces of genus $g$ has a minimum in the moduli space and that the minimum grows in the order $(\log g)^{-2}$ in terms of the genus. We also describe the asymptotic behavior of…

Geometric Topology · Mathematics 2024-04-25 Manman Jiang , Huiping Pan

A surface that is the pointwise sum of circles in Euclidean space is either coplanar or contains no more than 2 circles through a general point. A surface that is the pointwise product of circles in the unit-quaternions contains either 2,…

Algebraic Geometry · Mathematics 2024-09-16 Niels Lubbes

A translational surface is a tensor product surface constructed from two space curves by translating one along the other. These surfaces are common within geometric modeling and, since their description is parametric, it is desirable to…

Algebraic Geometry · Mathematics 2026-02-20 Matthew Weaver