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We give a bound, linear in the complexity of the surface, on the asymptotic dimension of the curve complex as well as the capacity dimension of the ending lamination space.

Geometric Topology · Mathematics 2019-10-23 Mladen Bestvina , Ken Bromberg

We are concerned with the existence of asymptotic directions for the group of volume-preserving diffeomorphisms of a closed 2-dimensional surface $(\Sigma,g)$ within the full diffeomorphism group, described by the Bao--Ratiu equations, a…

Differential Geometry · Mathematics 2026-01-30 Siran Li , Xiangxiang Su

Building on work of Segre and Koll'ar on cubic hypersurfaces, we construct over imperfect fields of characteristic p\geq 3 particular hypersurfaces of degree p, which show that geometrically rational schemes that are regular and whose…

Algebraic Geometry · Mathematics 2020-02-24 Keiji Oguiso , Stefan Schröer

In this paper, we initiate the systematic study of density of algebraic points on surfaces. We give an effective asymptotic range in which the density degree set has regular behavior dictated by the index. By contrast, in small degree, the…

Number Theory · Mathematics 2025-07-02 Jennifer Berg , Yu Fu , Evangelia Gazaki , Morena Porzio , James Rawson , Isabel Vogt

We establish an asymptotic formula for the number of integral solutions of bounded height for pairs of diagonal quartic equations in $26$ or more variables. In certain cases, pairs in $25$ variables can be handled.

Number Theory · Mathematics 2022-11-21 Joerg Bruedern , Trevor D. Wooley

We proved that the union of rational curves is dense on a very general K3 surface and the union of elliptic curves is dense in the 1st jet space of a very general K3 surface, both in the strong topology.

Algebraic Geometry · Mathematics 2015-03-17 Xi Chen , James D. Lewis

We obtain two in a sense dual to each other results: First, that the capacity dimension of every compact, locally self-similar metric space coincides with the topological dimension, and second, that the asymptotic dimension of a metric…

Geometric Topology · Mathematics 2009-06-04 Sergei Buyalo , Nina Lebedeva

In this paper we establish an asymptotic formula for the number of rational points of bounded anticanonical height which lie on a certain Zariski dense subset of the biprojective hypersurface \begin{align*} x_1y_1^2+...+x_sy_s^2 = 0…

Number Theory · Mathematics 2023-12-05 Xun Wang

We show that a locally Ahlfors 2-regular and locally linearly locally contractible metric surface is locally quasisymmetrically equivalent to the disk. We also discuss an application of this result to the problem of characterizing surfaces…

Metric Geometry · Mathematics 2007-09-07 Kevin Wildrick

For a singularly perturbed system of reaction--diffusion equations, assuming that the 0th order solutions in regular and singular regions are all stable, we construct matched asymptotic expansions for formal solutions to any desired order…

patt-sol · Physics 2008-02-03 Xiao-Biao Lin

We prove that a graph G is asymptotically isomorphic to the ray if and only if G is uniformly spherically bounded and is of bounded local degrees. This problem arouse in combinatorics and was posed in [3] (Problem 10.1).

Geometric Topology · Mathematics 2011-08-23 Oleksii Kuchaiev , Anastasiia Tsvietkova

In this paper we investigate the quantity of diagonal quartic surfaces $a_0 X_0^4 + a_1 X_1^4 + a_2 X_2^4 +a_3 X_3^4 = 0$ which have a Brauer-Manin obstruction to the Hasse principle. We are able to find an asymptotic formula for the…

Algebraic Geometry · Mathematics 2022-10-14 Tim Santens

Given an embedded stable hypersurface in a four-dimensional symplectic manifold, we prove that it is stable isotopic to a $C^0$-close stable hypersurface with the following property: $C^\infty$-nearby hypersurfaces are generically unstable.…

Symplectic Geometry · Mathematics 2024-07-02 Robert Cardona

The Cayley cubic surface is given by the equation sum_{i=1}^4 X_i^{-1}=0. We show that the number of non-trivial primitive integer points of size at most B is of exact order B(log B)^6, as predicted by Manin's conjecture.

Number Theory · Mathematics 2007-05-23 D. R. Heath-Brown

In this paper, we are concerned with the asymptotic behavior of weak solutions to certain elliptic and parabolic problems involving the fractional $p$-Laplacian in cylindrical domains that become unbounded in one direction. The nonlocal…

Analysis of PDEs · Mathematics 2025-10-24 Tahir Boudjeriou , Prosenjit Roy

In this note we consider Diophantine equations of the form \begin{equation*} a(x^p-y^q) = b(z^r-w^s), \quad \mbox{where}\quad \frac{1}{p}+\frac{1}{q}+\frac{1}{r}+\frac{1}{s}=1, \end{equation*} with even positive integers $p,q,r,s$. We show…

Number Theory · Mathematics 2013-11-05 Andrew Bremner , Maciej Ulas

We give a simple topological argument to show that the number of solutions of the asymptotic Plateau problem in hyperbolic space is generically unique. In particular, we show that the space of codimension-1 closed submanifolds of sphere at…

Differential Geometry · Mathematics 2012-01-04 Baris Coskunuzer

We find a criterion for correct solvability in L_p(R) of a linear differential equation of a first order with non-negative locally integrated coefficient and study the asymptotic properties of its solutions.

Classical Analysis and ODEs · Mathematics 2007-05-23 M. Lukachev , L. Shuster

We propose and compare various techiques available to produce smooth cubic hypersurfaces over a non-algebraically-closed field which have rational points but which are not stably rational over their ground field.

Algebraic Geometry · Mathematics 2016-12-30 Jean-Louis Colliot-Thélène

In this paper, we investigate the asymptotic behavior of regular ends of flat surfaces in the hyperbolic 3-space H^3. Galvez, Martinez and Milan showed that when the singular set does not accumulate at an end, the end is asymptotic to a…

Differential Geometry · Mathematics 2009-08-03 Masatoshi Kokubu , Wayne Rossman , Masaaki Umehara , Kotaro Yamada