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Related papers: On Darboux-Treibich-Verdier potentials

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This is the first paper in a series where we study arithmetic applications of the multiple elliptic Gamma functions originated from mathematical physics. The main purpose of this paper is the introduction of a framework for applications of…

Number Theory · Mathematics 2026-01-27 Pierre L. L. Morain

This paper continues the study of the ellipsoid embedding function of symplectic Hirzebruch surfaces parametrized by $b \in (0,1)$, the size of the symplectic blow-up. Cristofaro-Gardiner, et al. (arxiv: 2004.13062) found that if the…

Symplectic Geometry · Mathematics 2023-05-12 Nicki Magill

We construct new elliptic solutions of the restricted Toda chain. These solutions give rise to a new explicit class of orthogonal polynomials which can be considered as a generalization of the Stieltjes-Carlitz elliptic polynomials.…

Classical Analysis and ODEs · Mathematics 2010-09-28 Alezei Zhedanov

We consider a class of vector-valued elliptic operators with unbounded coefficients, coupled up to the first-order, in the Lebesgue space L^p(R^d;R^m) with p in (1,\infty). Sufficient conditions to prove generation results of an analytic…

Analysis of PDEs · Mathematics 2021-01-07 L. Angiuli , L. Lorenzi , E. M. Mangino , A. Rhandi

The infinity symmetric power $L$-functions play a fundamental role in Wan's groundbreaking work on Dwork's conjecture[16]. Building upon this foundation, Haessig[8] established the $p$-adic estimates for these $L$-functions in the case of…

Number Theory · Mathematics 2025-12-03 Bolun Wei , Liping Yang

This paper establishes the symmetries of Darboux's equations (1882) on tori. We extend Ince's work (1940) by developing new infinite series expansions in terms of Jacobi elliptic functions around each of the four regular singular points of…

Classical Analysis and ODEs · Mathematics 2017-05-17 Yik-Man Chiang , Avery Ching , Chiu-Yin Tsang

We give new estimates for a critical elliptic system introduced by Rivi\`ere-Struwe in \cite{riviere_struwe} (see also the work of Rupflin \cite{rupflin} and Schikorra \cite{schikorra_frames}), which generalises PDE solved by harmonic (and…

Analysis of PDEs · Mathematics 2013-09-19 Ben Sharp

We study a class of elliptic operators $A$ with unbounded coefficients defined in $I\times\CR^d$ for some unbounded interval $I\subset\CR$. We prove that, for any $s\in I$, the Cauchy problem $u(s,\cdot)=f\in C_b(\CR^d)$ for the parabolic…

Analysis of PDEs · Mathematics 2008-04-10 M. Kunze , L. Lorenzi , A. Lunardi

Let $X$ be a smooth $n\,$-dimensional manifold and $D$ be an open connected set in $X$ with smooth boundary $\partial D$. Perturbing the Cauchy problem for an elliptic system $Au = f$ in $D$ with data on a closed set $\iG \subset \partial…

Analysis of PDEs · Mathematics 2023-04-25 Alexander Shlapunov , Nikolai Tarkhanov

Let f be a nonconstant meromorphic function in the plane and h be a nonconstant elliptic function. We show that if all zeros of f are multiple exept finitely many and T(r,h)=o{T(r,f)} as r tends to infinity, then f'=h has infinitely many…

Complex Variables · Mathematics 2011-11-04 Pai Yang , Shahar Nevo , Xuecheng Pang

The ellipsoid embedding function of a symplectic four-manifold measures the amount by which its symplectic form must be scaled in order for it to admit an embedding of an ellipsoid of varying eccentricity. This function generalizes the…

Symplectic Geometry · Mathematics 2025-01-29 Caden Farley , Tara Holm , Nicki Magill , Jemma Schroder , Morgan Weiler , Zichen Wang , Elizaveta Zabelina

We show that the average and typical ranks in a certain parametric family of elliptic curves described by D. Ulmer tend to infinity as the parameter $d \to\infty$. This is perhaps unexpected since by a result of A. Brumer, the average rank…

Number Theory · Mathematics 2009-03-18 Carl Pomerance , Igor E. Shparlinski

We consider harmonic functions in the unit ball of $\mathbb{R}^{n+1}$ that are unbounded near the boundary but can be estimated from above by some (rapidly increasing) radial weight $w$. Our main result gives some conditions on $w$ that…

Classical Analysis and ODEs · Mathematics 2016-03-24 A. Logunov , E. Malinnikova , P. Mozolyako

For the class of free-infinitely divisible transforms are introduced three families of increasing Urbanik type subclasses of those transforms. They begin with the class of free-normal transforms and end up with the whole class of…

Probability · Mathematics 2022-01-05 Zbigniew J. Jurek

In a previous paper by one of the authors, a Lagrangian 3-form structure was established for a generalised Darboux system, originally describing orthogonal curvilinear coordinate systems, which encodes the Kadomtsev-Petviashvili (KP)…

Mathematical Physics · Physics 2023-05-08 Joao Faria Martins , Frank W Nijhoff , Daniel Riccombeni

We give several unequivalent notions of convergency of meromorphic functions and more generally meromorphic mappings (strong, weak, $\Gamma $-convergency and some others). Relations between them are investigated. A version of Rouche theorem…

Complex Variables · Mathematics 2016-09-07 Sergei Ivashkovich

We characterize real elliptic differential systems whose solutions can be expressed in terms of holomorphic solutions to an associated holomorphic Pfaffian system $\mathcal H$ on a complex manifold. In particular, these elliptic systems…

Differential Geometry · Mathematics 2026-02-13 Mark E. Fels , Thomas A. Ivey

Almost all research on superintegrable potentials concerns spaces of constant curvature. In this paper we find by exhaustive calculation, all superintegrable potentials in the four Darboux spaces of revolution that have at least two…

Mathematical Physics · Physics 2007-05-23 E. G. Kalnins , J. M. Kress , W. Miller , P. Winternitz

Superintegrable systems in 2D Darboux spaces were classified and it was found that there exist 12 distinct classes of superintegrable systems with quadratic integrals of motion (and quadratic symmetry algebras generated by the integrals) in…

Exactly Solvable and Integrable Systems · Physics 2023-08-15 Ian Marquette , Junze Zhang , Yao-Zhong Zhang

We consider layer potentials associated to elliptic operators $Lu=-{\rm div}(A \nabla u)$ acting in the upper half-space $\mathbb{R}^{n+1}_+$ for $n\geq 2$, or more generally, in a Lipschitz graph domain, where the coefficient matrix $A$ is…

Analysis of PDEs · Mathematics 2017-05-17 Steve Hofmann , Marius Mitrea , Andrew J. Morris