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We provide a natural generalization to submanifolds of the holographic method used to extract higher-order local invariants of both Riemannian and conformal embeddings, some of which depend on a choice of parallelization of the normal…

Differential Geometry · Mathematics 2025-01-07 Samuel Blitz , Josef Šilhan

In Part I of the present series of papers, we adumbrate our idea of Riemannian geometry to higher order in the infinitesimals and derive expressions for the appropriate generalizations of parallel transport and the Riemannian curvature…

Differential Geometry · Mathematics 2024-06-12 William Bies

There is a class of Laplacian like conformally invariant differential operators on differential forms $L^\ell_k$ which may be considered the generalisation to differential forms of the conformally invariant powers of the Laplacian known as…

Differential Geometry · Mathematics 2013-04-10 A. Rod Gover , Josef Silhan

This paper concerns the eigenvalues of the Neumann-Poincar\'e operator, a boundary integral operator associated with the harmonic double-layer potential. Specifically, we examine how the eigenvalues depend on the support of integration and…

Analysis of PDEs · Mathematics 2025-04-02 Matteo Dalla Riva , Pier Domenico Lamberti , Paolo Luzzini , Paolo Musolino

We discuss the AdS/CFT correspondence for negative curvature Einstein manifolds whose conformal boundary is degenerate in the sense that it is of codimension greater than one. In such manifolds, hypersurfaces of constant radius do not blow…

High Energy Physics - Theory · Physics 2007-05-23 Marika Taylor-Robinson

It was shown recently that the constraints on the initial data for Einstein's equations may be posed as an evolutionary problem [9]. In one of the proposed two methods the constraints can be replaced by a first order symmetrizable…

General Relativity and Quantum Cosmology · Physics 2016-02-09 István Rácz , Jeffrey Winicour

We present a numerical scheme for solving Einstein's Equations in the presence of a negative cosmological constant and an event horizon with planar topology. Our scheme allows for the introduction of a particular metric source at the…

High Energy Physics - Theory · Physics 2015-06-18 Koushik Balasubramanian , Christopher P. Herzog

We introduce a homothetic extension of classical Weyl integrable geometry by generalizing the usual linear gauge transformations to affine homothetic transformations centered at a distinguished harmonic, scale-invariant form $\alpha_d$.…

Mathematical Physics · Physics 2026-03-31 Fereidoun Sabetghadam

In the present paper we construct deformations of the Poincar\'e algebra as representations on a noncommutative spacetime with canonical commutation relations. These deformations are obtained by solving a set of conditions by an appropriate…

High Energy Physics - Theory · Physics 2009-11-10 Florian Koch , Efrossini Tsouchnika

We formulate the Einstein-Cartan-Dirac equations in the Newman-Penrose (NP) formalism, thereby presenting a more accurate and explicit analysis of previous such studies. The equations show in a transparent way how the Einstein-Dirac…

General Relativity and Quantum Cosmology · Physics 2018-10-03 Swanand Khanapurkar , Abhinav Varma , Nehal Mittal , Navya Gupta , Tejinder P. Singh

We derive a relationship between the eigenvalues of the Weyl-Schouten tensor of a conformal representative of the conformal infinity of a hyperbolic Poincar\'e manifold and the principal curvatures on the level sets of its uniquely…

Differential Geometry · Mathematics 2009-10-16 Vincent Bonini , José M. Espinar , Jie Qing

We consider new Abelian twists of Poincare algebra describing non-symmetric generalization of the ones given in [1], which lead to the class of Lie-deformed quantum Minkowski spaces. We apply corresponding twist quantization in two ways: as…

High Energy Physics - Theory · Physics 2018-01-17 Jerzy Lukierski , Daniel Meljanac , Stjepan Meljanac , Danijel Pikutic , Mariusz Woronowicz

We present the general theory of curves in conformal geometry using tractor calculus. This primarily involves a tractorial determination of distinguished parametrizations and relative and absolute conformal invariants of generic curves. The…

Differential Geometry · Mathematics 2018-05-02 Josef Šilhan , Vojtěch Žádník

We develop methods for constructing and computing conformal invariants of submanifolds, with a particular emphasis on conformal submanifold scalars and conformally invariant integrals of natural submanifold scalars. These methods include a…

Differential Geometry · Mathematics 2026-04-10 Jeffrey S. Case , Ayush Khaitan , Yueh-Ju Lin , Aaron J. Tyrrell , Wei Yuan

In many instances of holographic correspondences between a d dimensional boundary theory and a d+1 dimensional bulk, a direct argument in the boundary theory implies that there must exist a simple and precise relation between the Euclidean…

High Energy Physics - Theory · Physics 2015-04-07 Frank Ferrari , Antonin Rovai

We summarize some our recent results on encoding exact solutions of field equations in Einstein and modified gravity theories into solitonic hierarchies derived for nonholonomic curve flows with associated bi-Hamilton structure. We argue…

General Relativity and Quantum Cosmology · Physics 2015-05-20 Sergiu I. Vacaru

We develop a Hamiltonian formulation of Bianchi type-I cosmological model in conformal gravity, i.e. the theory described by a Lagrangian which involves the quadratic curvature invariant constructed from the Weyl tensor, in four dimensions.…

General Relativity and Quantum Cosmology · Physics 2007-05-23 Laurent Querella

We propose a systematic approach to celestial holography in massless theories beginning by studying the implications of properly incorporating field configurations built using the eigenstates of central interest: massless conformal primary…

High Energy Physics - Theory · Physics 2024-04-09 Wei Bu , Sean Seet

In 2013, Balasubramanian presented a 5+1 dimensional holographic toy model that allows for an exact solution to Einstein's equations in the bulk in which the isometries of $AdS_5$ appear to be broken to an isometry group describing a…

High Energy Physics - Theory · Physics 2019-06-11 Mario Flory

The Poincar\'e sector of a recently deformed conformal algebra is proposed to describe, after the identification of the deformation parameter with the Planck length, the symmetries of a new relativistic theory with two observer-independent…

High Energy Physics - Theory · Physics 2016-11-09 Nicola Rossano Bruno