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Let $X$ be an irreducible projective variety of dimension $n$ in a projective space and let $x$ be a point of $X$. Denote by ${\rm Curves}_d(X,x)$ the space of curves of degree $d$ lying on $X$ and passing through $x$. We will show that the…

Algebraic Geometry · Mathematics 2007-05-23 Jun-Muk Hwang

This note presents a formula for the enumerative invariants of arbitrary genus in toric surfaces. The formula computes the number of curves of a given genus through a collection of generic points in the surface. The answer is given in terms…

Algebraic Geometry · Mathematics 2007-05-23 Grigory Mikhalkin

In this paper we prove a conjecture on the dimension of linear systems, with base points of multiplicity 2 and 3, on an Hirzebruck surface.

Algebraic Geometry · Mathematics 2010-03-17 Antonio Laface

Any pair of intersecting cylinders on a translation surface is "coherent," in that the geometric and algebraic intersection numbers of their core curves are equal (up to sign). In this paper, we investigate when a pair of multicurves can be…

Geometric Topology · Mathematics 2025-11-26 Juliet Aygun , Janet Barkdoll , Aaron Calderon , Jenavie Lorman , Theodore Sandstrom

The well known formulas express the curvature and the torsion of a curve in $R^3$ in terms of euclidean invariants of its derivatives. We obtain expressions of this kind for all curvatures of curves in $R^n$. It follows that a curve in…

Differential Geometry · Mathematics 2012-12-03 Eugene Gutkin

The conjectural equivalence of curve counting on Calabi-Yau 3-folds via stable maps and stable pairs is discussed. By considering Calabi-Yau 3-folds with K3 fibrations, the correspondence naturally connects curve and sheaf counting on K3…

Algebraic Geometry · Mathematics 2008-08-05 R. Pandharipande

There is a natural question to ask whether the rich mathematical theory of the hyperelliptic curves can be extended to all superelliptic curves. Moreover, one wonders if all of the applications of hyperelliptic curves such as cryptography,…

Algebraic Geometry · Mathematics 2015-02-26 Tony Shaska , Eustrat Zhupa , Lubjana Beshaj

Counts of curves in $\mathbb{P}^1\times\mathbb{P}^1$ with fixed contact order with the toric boundary and satisfying point conditions can be determined with tropical methods by Mikhalkin. If we require that our curves intersect the zero-…

Algebraic Geometry · Mathematics 2022-12-22 Daniel Corey , Hannah Markwig , Dhruv Ranganathan

We study the structure of collections of algebraic curves in three dimensions that have many curve-curve incidences. In particular, let $k$ be a field and let $\mathcal{L}$ be a collection of $n$ space curves in $k^3$, with…

Algebraic Geometry · Mathematics 2024-02-27 Larry Guth , Joshua Zahl

We prove that every Jordan curve in $\mathbb{R}^2$ inscribes uncountably many rhombi. No regularity condition is assumed on the Jordan curve.

Metric Geometry · Mathematics 2021-10-22 Antony T. H. Fung

Using methods from analytic number theory, for $m > 5$ and for $m = 4$, we obtain asymptotics with power-saving error terms for counts of elliptic curves with a cyclic $m$-isogeny up to quadratic twist over the rational numbers. For $m >…

Number Theory · Mathematics 2024-01-17 Grant Molnar

It is shown that the $n$-dimensional Jacobian conjecture over algebraic number fields may be considered as an existence problem of integral points on affine curves. More specially, if the Jacobian conjecture over $\mathbb{C}$ is false, then…

Algebraic Geometry · Mathematics 2020-11-20 Nguyen Van Chau

In this paper we study similarity measures for moving curves which can, for example, model changing coastlines or retreating glacier termini. Points on a moving curve have two parameters, namely the position along the curve as well as time.…

Computational Geometry · Computer Science 2015-07-15 Kevin Buchin , Tim Ophelders , Bettina Speckmann

We show that the Fourier transform on the Jacobian of a curve interchanges "$\delta$ functions" at the curve and the theta divisor. The Torelli theorem is an immediate consequence.

Algebraic Geometry · Mathematics 2007-05-23 Alexander Beilinson , Alexander Polishchuk

Orthogonal polynomials in two variables on cubic curves are considered, including the case of elliptic curves. For an integral with respect to an appropriate weight function defined on a cubic curve, an explicit basis of orthogonal…

Numerical Analysis · Mathematics 2020-11-24 Marco Fasondini , Sheehan Olver , Yuan Xu

We derive a new bound for some bilinear sums over points of an elliptic curve over a finite field. We use this bound to improve a series of previous results on various exponential sums and some arithmetic problems involving points on…

Number Theory · Mathematics 2013-08-23 Omran Ahmadi , Igor E. Shparlinski

We construct isotrivial and non-isotrivial elliptic curves over $\mathbb{F}_q(t)$ with an arbitrarily large set of separable integral points. As an application of this construction, we prove that there are isotrivial log-general type…

Number Theory · Mathematics 2012-11-06 Ricardo Conceição

We study the stationary descendant Gromov-Witten theory of toric surfaces by combining and extending a range of techniques - tropical curves, floor diagrams, and Fock spaces. A correspondence theorem is established between tropical curves…

Algebraic Geometry · Mathematics 2020-03-31 Renzo Cavalieri , Paul Johnson , Hannah Markwig , Dhruv Ranganathan

We introduce an analogue of the Mertens conjecture for elliptic curves over finite fields. Using a result of Waterhouse, we classify the isogeny classes of elliptic curves for which this conjecture holds in terms the size of the finite…

Number Theory · Mathematics 2019-02-20 Peter Humphries

In this paper, we prove the Effective Bogomolov's Conjecture for hyperelliptic curves defined over function fields.

Algebraic Geometry · Mathematics 2007-05-23 Kazuhiko Yamaki