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Asymptotic spacetime symmetries have been conjectured to play an important role in quantum gravity. In this paper we study the breaking of asymptotic symmetries associated with a null horizon boundary. In two-dimensions, these symmetries…

High Energy Physics - Theory · Physics 2017-03-08 Christopher Eling

Motivated by the theory of quantum waveguides, we investigate the spectrum of the Laplacian, subject to Dirichlet boundary conditions, in a curved strip of constant width that is defined as a tubular neighbourhood of an infinite curve in a…

Mathematical Physics · Physics 2009-11-07 David Krejcirik

We study sequences of immersions respecting bounds coming from Riemannian geometry and apply the ensuing results to the study of sequences of submanifolds of symplectic and contact manifolds. This allows us to study the subtle interaction…

Symplectic Geometry · Mathematics 2023-08-04 Jean-Philippe Chassé

We report on some recent existence and uniqueness results for elliptic equations subject to Dirichlet boundary condition and involving a singular nonlinearity. We take into account the following types of problems: (i) singular problems with…

Analysis of PDEs · Mathematics 2007-05-23 Vicentiu Radulescu

We give examples of compact symplectic manifolds with disconnected contact type boundary in dimension $4n$ for any $n\geq 1$. The example is given by a subset of the tangent bundle of a compact quotient of the complex hyperbolic space…

Symplectic Geometry · Mathematics 2007-05-23 Leonardo Macarini

``Pseudo-cohomology'', as a refinement of Lie group cohomology, is soundly studied aiming at classifying of the symplectic manifolds associated with Lie groups. In this study, the framework of symplectic cohomology provides fundamental new…

Mathematical Physics · Physics 2009-11-10 J. Guerrero , J. L. Jaramillo , V. Aldaya

We perform quantitative spectral analysis of the self-adjoint Dirichlet Laplacian $\mathsf{H}$ on an unbounded, radially symmetric (generalized) parabolic layer $\mathcal{P}\subset\mathbb{R}^3$. It was known before that $\mathsf{H}$ has an…

Spectral Theory · Mathematics 2018-06-01 Pavel Exner , Vladimir Lotoreichik

We show that any symplectic filling of the standard contact submanifold $(\mathbb{S}^{2n-1},\xi_{\mathrm{std}})$ of $(\mathbb{S}^{2n+1},\xi_{\mathrm{std}})$ in $(\mathbb{D}^{n+1},\omega_{\mathrm{std}})$ is smoothly unknotted if $n\ge 2$. We…

Symplectic Geometry · Mathematics 2025-06-10 Zhengyi Zhou

We use geometric measure theory to introduce the notion of asymptotic cones associated with a singular subspace of a Riemannian manifold. This extends the classical notion of asymptotic directions usually defined on smooth submanifolds. We…

Differential Geometry · Mathematics 2015-01-13 Xiang Sun , Jean-Marie Morvan

We provide the first holographic evidence for the existence of a non-supersymmetric conformal manifold arising from exactly marginal but supersymmetry-breaking deformations of a superconformal three-dimensional field theory. In particular,…

High Energy Physics - Theory · Physics 2023-03-10 Alfredo Giambrone , Adolfo Guarino , Emanuel Malek , Henning Samtleben , Colin Sterckx , Mario Trigiante

We give the parallelism between locally conformal symplectic manifolds and contact manifolds. We also give the generalization of exact contact manifolds.

Differential Geometry · Mathematics 2015-01-21 Eugène Okassa

We consider for a small parameter $\varepsilon >0$ a parabolic convection-diffusion problem with P\'eclet number of order $\mathcal{O}(\varepsilon^{-1})$ in a three-dimensional graph-like junction consisting of thin curvilinear cylinders…

Analysis of PDEs · Mathematics 2024-06-24 Taras Mel'nyk , Christian Rohde

This is a revision of some expository lecture notes written originally for a 5-hour minicourse on the intersection theory of punctured holomorphic curves and its applications in 3-dimensional contact topology. The main lectures are aimed…

Symplectic Geometry · Mathematics 2019-08-19 Chris Wendl

In this paper we study the asymptotic behaviour of the quasilinear $curl$-$curl$ equation of 3D magnetostatics with respect to a singular perturbation of the differential operator and prove the existence of the topological derivative using…

Analysis of PDEs · Mathematics 2026-04-01 Peter Gangl , Kevin Sturm

In this paper we study the coisotropic reduction in different types of dynamics according to the geometry of the corresponding phase space. The relevance of the coisotropic reduction is motivated by the fact that these dynamics can always…

Symplectic Geometry · Mathematics 2024-05-22 Manuel de León , Rubén Izquierdo-López

This is the second of a series of papers dealing with the asymptotic behavior of certain integrals occuring in the description of the spectrum of an invariant elliptic operator on a compact Riemannian manifold carrying the action of a…

Symplectic Geometry · Mathematics 2009-06-15 Pablo Ramacher

The symplectic cohomology of certain symplectic manifolds $W$ with non-compact ends modelled on the positive symplectization of a compact contact manifold $Y$ is shown to vanish whenever there is a positive loop of contactomorphisms of $Y$…

Symplectic Geometry · Mathematics 2024-03-13 Dylan Cant , Jakob Hedicke , Eric Kilgore

We study relationships between asymptotic geometry of submanifolds in the hyperbolic space and their regularity properties near the ideal boundary, revisiting some of the related results in the literature. In particular, we discuss…

Differential Geometry · Mathematics 2025-01-16 Gerasim Kokarev

We study pseudoholomorphic curves in symplectic quotients as adiabatic limits of solutions of a system of nonlinear first order elliptic partial differential equations in the ambient symplectic manifold. The symplectic manifold carries a…

Symplectic Geometry · Mathematics 2007-05-23 A. Rita Gaio , Dietmar A. Salamon

In this article, we consider a complete, non-compact almost Hermitian manifold whose curvature is asymptotic to that of the complex hyperbolic plane. Under natural geometric conditions, we show that such a manifold arises as the interior of…

Differential Geometry · Mathematics 2024-05-28 Alan Pinoy