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Related papers: A Chiang-type Lagrangian in CP2

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We show that the Clifford torus and the totally geodesic real projective plane RP^2 in the complex projective plane CP^2 are the unique Hamiltonian stable minimal Lagrangian compact surfaces of CP^2 with genus less than or equal to 4, when…

Differential Geometry · Mathematics 2007-05-23 Francisco Urbano

We extract from a toric model of the Chekanov-Schlenk exotic torus in $\mathbb{CP}^2$ methods of construction of Lagrangian submanifolds in toric symplectic manifolds. These constructions allow for some control of the monotonicity. We…

Symplectic Geometry · Mathematics 2015-10-07 Miguel Abreu , Agnès Gadbled

We show how to systematically derive the complete set of the gauge transformations of different types of the gauge invariant models, which are the chiral Schwinger and CP$^1$ with Chern-Simons term, in the Lagrangian Formalism.

High Energy Physics - Theory · Physics 2008-11-26 Seung-Kook Kim , Yong-Wan Kim , Young-Jai Park

In this note, we present a new look at translationally equivariant minimal Lagrangian surfaces in the complex projective plane via the loop group method.

Differential Geometry · Mathematics 2015-02-18 Josef F. Dorfmeister , Hui Ma

We obtain some equations for Hamiltonian-minimal Lagrangian surfaces in CP^2 and give their particular solutions in the case of tori.

Differential Geometry · Mathematics 2007-05-23 A. E. Mironov

We show that for every non-negative integer n there is a real n-dimensional family of minimal Lagrangian tori in CP^2, and hence of special Lagrangian cones in C^3 whose link is a torus. The proof utilises the fact that such tori arise from…

Differential Geometry · Mathematics 2007-05-23 Emma Carberry , Ian McIntosh

We prove that a real Lagrangian submanifold in a closed symplectic manifold is unique up to cobordism. We then discuss the classification of real Lagrangians in $\mathbb{C} P^2$ and $S^2\times S^2$. In particular, we show that a real…

Symplectic Geometry · Mathematics 2020-03-19 Joontae Kim

In this paper, we employ the loop group method to study the construction of minimal Lagrangian surfaces in the complex projective plane for which the surface is contractible. We present several new classes of minimal Lagrangian surfaces in…

Differential Geometry · Mathematics 2021-02-03 Josef F. Dorfmeister , Hui Ma

We study Hamiltonian stationary Lagrangian surfaces in C^2, i.e. Lagrangian surfaces in C^2 which are stationary points of the area functional under smooth Hamiltonian variations. Using loop groups, we propose a formulation of the equation…

Differential Geometry · Mathematics 2007-05-23 Frederic Helein , Pascal Romon

Related to each degeneration from CP^2 to CP(a^2,b^2,c^2), for (a,b,c) a Markov triple - positive integers satisfying a^2 + b^2 + c^2 = 3abc - there is a monotone Lagrangian torus, which we call T(a^2,b^2,c^2). We employ techniques from…

Symplectic Geometry · Mathematics 2016-04-07 Renato Vianna

We present a new and simpler proof of the fact that any Lagrangian $\mathbb{R}P^2$ in $T^*\mathbb{R}P^2$ is Hamiltonian isotopic to the zero section. Our proof mirrors the one given by Li and Wu for the Hamiltonian uniqueness of Lagrangians…

Symplectic Geometry · Mathematics 2024-01-09 Nikolaos Adaloglou

The complex projective space $\mathbb C P^2$ of complex dimension $2$ has a Spin$^c$ structure carrying K\"ahlerian Killing spinors. The restriction of one of these K\"ahlerian Killing spinors to a surface $M^2$ characterizes the isometric…

Differential Geometry · Mathematics 2017-04-05 Roger Nakad , Julien Roth

We consider a bi-Lagrangian structure $(\omega,\mathcal{F}_{1},\mathcal{F}_{2})$ on a manifold $M$, that is, $(M,\omega,\mathcal{F}_{1},\mathcal{F}_{2})$ is a bi-Lagrangian manifold. We prolong bi-Lagrangian structures on $M$, and lift a…

Dynamical Systems · Mathematics 2025-08-19 Bertuel Tangue Ndawa

We construct a Lagrangian submanifold, inside the cotangent bundle of a real torus, which we call a Lagrangian pair of pants. It is given as the graph of the differential of a smooth function defined on the real blow up of a Lagrangian…

Symplectic Geometry · Mathematics 2023-02-13 Diego Matessi

We consider a tippe top modeled as an eccentric sphere, spinning on a horizontal table and subject to a sliding friction. Ignoring translational effects, we show that the system is reducible using a Routhian reduction technique. The reduced…

Dynamical Systems · Mathematics 2010-02-26 M. C. Ciocci , B. Langerock

We study the following quantitative phenomenon in symplectic topology: In many situations, if a Lagrangian cobordism is sufficiently small (in a sense specified below) then its topology is to a large extend determined by its boundary. This…

Symplectic Geometry · Mathematics 2019-03-20 Mads R. Bisgaard

We discuss static particle-like solitons in the 2+1 dimensional CP(1) model with a small mass deformation $m$ preserving a $U(1) \times Z_2$ symmetry in the Lagrangian. Due to the breaking of scale invariance, the energy function becomes a…

High Energy Physics - Theory · Physics 2014-02-26 Adam J Peterson

In this paper we construct new examples of minimal Lagrangian submanifolds in the complex hyperbolic space with large symmetry groups, obtaining three 1-parameter families with cohomegeneity one. We characterize them as the only minimal…

Differential Geometry · Mathematics 2012-12-04 I. Castro , C. R. Montealegre , F. Urbano

We construct an exotic monotone Lagrangian torus in CP^2 using techniques motivated by mirror symmetry. We show that it bounds 10 families of Maslov index 2 holomorphic discs, and it follows that this exotic torus is not Hamiltonian…

Symplectic Geometry · Mathematics 2014-11-11 Renato Vianna

Effective tree Chiral Lagrangian is interpreted as a power series expansion of the kinematical variables. In the presence of the strong interaction this expansion is valid below the unitarity cut, hence in the unphysical region.…

High Energy Physics - Phenomenology · Physics 2016-09-06 Tran N. Truong
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