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Related papers: Hamiltonian stationary Lagrangian surfaces in C^2

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Using results by Donaldson and Auroux on pseudo-holomorphic curves as well as Duval's rational convexity construction, the paper investigates the existence of smooth Lagrangian surfaces representing 2-dimensional homology classes in complex…

Differential Geometry · Mathematics 2009-03-27 Daniel Bennequin , Thanh-Tam Le

We prove that the product of equators $S^{1} \times S^{1}$ in $S^{2} \times S^{2}$ is globally volume minimizing under Hamiltonian deformations.

Differential Geometry · Mathematics 2007-05-23 Hiroshi Iriyeh , Hajime Ono , Takashi Sakai

The Lagrangian representation of multi-Hamiltonian PDEs has been introduced by Y. Nutku and one of us (MVP). In this paper we focus on systems which are (at least) bi-Hamiltonian by a pair $A_1$, $A_2$, where $A_1$ is a hydrodynamic-type…

Mathematical Physics · Physics 2017-01-31 M. V. Pavlov , R. F. Vitolo

The Hamiltonian shape invariant of a domain $X \subset \mathbb R^4$, as a subset of $\mathbb R^2$, describes the product Lagrangian tori which may be embedded in $X$. We provide necessary and sufficient conditions to determine whether or…

Symplectic Geometry · Mathematics 2021-05-11 Richard Hind , Jun Zhang

We prove that a monotone Lagrangian torus in $S^2\times S^2$ which suitably sits in a symplectic fibration with two sections in its complement is Hamiltonian isotopic to the Clifford torus.

Symplectic Geometry · Mathematics 2019-06-05 Kai Cieliebak , Martin Schwingenheuer

Following earlier work of Loftin-McIntosh, we study minimal Lagrangian immersions of the universal cover of a closed surface (of genus at least 2) into CH2, with prescribed data of a conformal structure plus a holomorphic cubic…

Differential Geometry · Mathematics 2012-01-20 Zheng Huang , John Loftin , Marcello Lucia

The two-particle models in de Sitter space-time with time-asymmetric retarded-advanced interactions are constructed. Particular cases of the field-type electromagnetic and scalar interactions are considered. The manifestly covariant…

General Relativity and Quantum Cosmology · Physics 2026-02-18 Askold Duviryak

In this article, we study the singularities of Lagrangian immersions into Cartesian product of surfaces. After applying a Hamiltonian isotopy in the Weinstein tubular neighbourhood of the Lagrangian immersion, the singular points of the…

Geometric Topology · Mathematics 2025-04-04 Zuyi Zhang

In this paper we consider the problem of packing a symplectic manifold with integral Lagrangian tori, that is Lagrangian tori whose area homomorphsims take only integer values. We prove that the Clifford torus in $S^2 \times S^2$ is a…

Symplectic Geometry · Mathematics 2024-09-04 Richard K. Hind , Ely Kerman

We construct using variational methods Hamiltonian Stationary Surfaces with Isolated Schoen-Wolfson Conical Singularities. We obtain these surfaces through a convergence process reminiscent to the Ginzburg-Landau asymptotic analysis in the…

Differential Geometry · Mathematics 2023-12-08 Filippo Gaia , Gerard Orriols , Tristan Rivière

For the rational, elliptic and trigonometric r-matrices, we exhibit the links between three "levels" of Poisson spaces: (a) Some finite-dimensional spaces of matrix-valued holomorphic functions on the complex line; (b) Spaces of spectral…

Mathematical Physics · Physics 2009-01-22 J. Harnad , J. C. Hurtubise

This article investigates stationary surfaces with boundaries, which arise as the critical points of functionals dependent on curvature. Precisely, a generalized "bending energy" functional $\mathcal{W}$ is considered which involves a…

Differential Geometry · Mathematics 2021-10-15 Anthony Gruber , Magdalena Toda , Hung Tran

We study several integrable Hamiltonian systems on the moduli spaces of meromorphic functions on Riemann surfaces (the Riemann sphere, a cylinder and a torus). The action-angle variables and the separated variables (in Sklyanin's sense) are…

Exactly Solvable and Integrable Systems · Physics 2015-06-26 Kanehisa Takasaki , Takashi Takebe

We investigate axisymmetric surfaces in Euclidean space that are stationary for the energy $E_\alpha=\int_\Sigma |p|^\alpha\, d\Sigma$. By using a phase plane analysis, we classify these surfaces when they intersect orthogonally the…

Differential Geometry · Mathematics 2026-01-14 Ulrich Dierkes , Rafael López

Multiplicity results for solutions of various boundary value problems are known for dynamical systems on compact configuration manifolds, given by Lagrangians or Hamiltonians which have quadratic growth in the velocities or in the momenta.…

Dynamical Systems · Mathematics 2007-05-23 Alberto Abbondandolo , Alessio Figalli

Generalized Weierstrass representations for generic surfaces conformally immersed into four-dimensional Euclidean and pseudo-Euclidean spaces of different signatures are presented. Integrable deformations of surfaces in these spaces…

Differential Geometry · Mathematics 2007-05-23 B. G. Konopelchenko

This survey examines separation of variables for algebraically integrable Hamiltonian systems whose tori are Jacobians of Riemann surfaces. For these cases there is a natural class of systems which admit separations in a nice geometric…

Mathematical Physics · Physics 2008-04-24 Jacques Hurtubise

We define Lagrangian Floer cohomology over $\mathbb Z_2$-coefficients by counting pearly trajectories for graded, exact Lagrangian immersions that satisfy certain positivity condition on the index of the non-embedded points, and show that…

Symplectic Geometry · Mathematics 2021-07-19 Garrett Alston , Erkao Bao

We investigate integrable 2-dimensional Hamiltonian systems with scalar and vector potentials, admitting second invariants which are linear or quadratic in the momenta. In the case of a linear second invariant, we provide some examples of…

Exactly Solvable and Integrable Systems · Physics 2009-11-10 Giuseppe Pucacco , Kjell Rosquist

A surface $\Sigma \subset S^5 \subset \mathbb{C}^3$ is called \emph{special Legendrian} if the cone $0 \times \Sigma \subset \mathbb{C}^3$ is special Lagrangian. The purpose of this paper is to propose a general method toward constructing…

Differential Geometry · Mathematics 2007-05-23 Sung Ho Wang
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