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We present for the first time an explicit, complete and closed-form solution to the three-dimensional problem of two fixed centres, based on Weierstrass elliptic and related functions. With respect to previous treatments of the problem, our…

Earth and Planetary Astrophysics · Physics 2015-12-09 Francesco Biscani , Dario Izzo

A consistent notation for the Weierstrass elliptic function $\wp(z;g_{2},g_{3})$, for $g_{2} > 0$ and arbitrary values of $g_{3}$ and $\Delta \equiv g_{2}^{3} - 27 g_{3}^{2}$, is introduced based on the parametric solution for the motion of…

Mathematical Physics · Physics 2015-10-28 Alain J. Brizard

Weierstrass elliptic and related functions have been recently shown to enable analytical explicit solutions to classical problems in astrodynamics. These include the constant radial acceleration problem, the Stark problem and the two-fixed…

Earth and Planetary Astrophysics · Physics 2016-01-21 Dario Izzo , Francesco Biscani

We construct a new Evans function for quasi-periodic solutions to the linearisation of the sine-Gordon equation about a periodic travelling wave. This Evans function is written in terms of fundamental solutions to a Hill's equation.…

Analysis of PDEs · Mathematics 2020-10-28 William A. Clarke , Robert Marangell

Consider a hyperelliptic curve of genus $2$ over a field $K$ of characteristic zero. After extending $K$ we can view it as a marked curve with its $6$ Weierstrass points. We classify the structure of the potentially stable reduction of such…

Algebraic Geometry · Mathematics 2026-03-24 Tim Gehrunger

We classify four dimensional $\mathcal{N}=2$ SCFTs whose Seiberg-Witten (SW) geometries can be written as hyperelliptic families. By using special K\"ahler condition of SW geometry, we reduce the problem to one parameter quasi-homogeneous…

High Energy Physics - Theory · Physics 2023-10-05 Dan Xie , Zekai Yu

We describe a procedure naturally associating relativistic Klein-Gordon equations in static curved spacetimes to non-relativistic quantum motion on curved spaces in the presence of a potential. Our procedure is particularly attractive in…

High Energy Physics - Theory · Physics 2018-01-31 Oleg Evnin , Hovhannes Demirchian , Armen Nersessian

A cyclic trigonal curve of genus three is a $\mathbb{Z}_3$ Galois cover of $\mathbb{P}^1$, therefore can be written as a smooth plane curve with equation $y^3 = f(x) =(x - b_1) (x - b_2) (x - b_3) (x - b_4)$. Following Weierstrass for the…

Algebraic Geometry · Mathematics 2013-12-17 Shigeki Matsutani , Emma Previato

We study the arithmetic properties of Weierstrass points on the modular curves $X_0^+(p)$ for primes $p$. In particular, we obtain a relationship between the Weierstrass points on $X_0^+(p)$ and the $j$-invariants of supersingular elliptic…

Number Theory · Mathematics 2017-02-20 Stephanie Treneer

The description of many dynamical problems like the particle motion in higher dimensional spherically and axially symmetric space-times is reduced to the inversion of a holomorphic hyperelliptic integral. The result of the inversion is…

General Relativity and Quantum Cosmology · Physics 2015-05-28 Victor Z. Enolski , Eva Hackmann , Valeria Kagramanova , Jutta Kunz , Claus Lämmerzahl

Let $K$ be a field whose absolute Galois group is finitely generated. If $K$ neither finite nor of characteristic 2, then every hyperelliptic curve over $K$ with all of its Weierstrass points defined over $K$ has infinitely many $K$-points.…

Number Theory · Mathematics 2012-02-07 Bo-Hae Im , Michael Larsen

In this paper, we give an algebraic construction of the solution to the following mean field equation $$ \Delta \psi+e^{\psi}=4\pi\sum_{i=1}^{2g+2}\delta_{P_{i}}, $$ on a genus $g\geq 2$ hyperelliptic curve $(X,ds^{2})$ where $ds^{2}$ is a…

Differential Geometry · Mathematics 2017-07-04 Jia-Ming Liou , Chih-Chun Liu

In this paper, we propose a method of fundamental solutions for the problems of two-dimensional potential flow past a doubly-periodic array of obstacles. The solutions of these problems involve doubly-periodic functions, and it is difficult…

Numerical Analysis · Mathematics 2020-06-30 Hidenori Ogata

In this paper we present a unified approach to the spectral analysis of an hypergeometric type operator whose eigenfunctions include the classical orthogonal polynomials. We write the eigenfunctions of this operator by means of a new Taylor…

Combinatorics · Mathematics 2007-05-23 José Manuel Marco , Javier Parcet

We find a new class of the Fuchsian equations, which have an algebraic geometric solutions with the parameter belonging to a hyperelliptic curve. Methods of calculating the algebraic genus of the curve, and its branching points, are…

Classical Analysis and ODEs · Mathematics 2007-05-23 Alexander O. Smirnov

The solution of the sine-Gordon equation in the quarter plane can be expressed in terms of the solution of a matrix Riemann-Hilbert problem whose definition involves four spectral functions $a,b,A,B$. The functions $a(k)$ and $b(k)$ are…

Analysis of PDEs · Mathematics 2017-10-04 Lin Huang , Jonatan Lenells

We first normalize the derivative Weierstrass $\wp'$-function appearing in Weierstrass equations which give rise to analytic parametrizations of elliptic curves by the Dedekind $\eta$-function. And, by making use of this normalization of…

Number Theory · Mathematics 2010-07-15 Ja Kyung Koo , Dong Hwa Shin , Dong Sung Yoon

We give an explicit description of the stable reduction of superelliptic curves of the form $y^n=f(x)$ at primes $\p$ whose residue characteristic is prime to the exponent $n$. We then use this description to compute the local $L$-factor of…

Number Theory · Mathematics 2014-09-12 Irene I. Bouw , Stefan Wewers

We study the minimal Weierstrass equations for genus 2 curves defined over a ring of integers $\mathcal O_{\mathbb F}$. This is done via reduction theory and Julia invariant of binary sextics. We show that when the binary sextics has extra…

Algebraic Geometry · Mathematics 2017-02-01 L. Beshaj

In this article we explicitly determine the structure of the Weierstrass semigroups $H(P)$ for any point $P$ of the Suzuki curve $\mathcal{S}_q$. As the point $P$ varies, exactly two possibilities arise for $H(P)$: one for the…

Combinatorics · Mathematics 2018-11-21 Daniele Bartoli , Maria Montanucci , Giovanni Zini