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Now showing items 6470-6489 of 40588
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CONFORMAL ANALYSIS OF ANTI-DE SITTER-LIKE SPACETIMES
(Queen Mary University of London, 30/10/2019)In this thesis, several aspects of anti-de Sitter-like spacetimes are treated under conformal methods. More speci cally, the analysis is based on Friedrich's metric conformal formulation of the Einstein eld equations. ... -
A conformal approach to the existence and asymptotic properties of solutions to the Einstein field equations
(Queen Mary University of London, 2023)The study of the initial value problem in General Relativity by means of conformal methods was initiated by H. Friedrich in 1986. In this seminal work, the standard conformal Einstein field equations are used to prove the ... -
A conformal approach to the stability of Einstein spaces with spatial sections of negative scalar curvature
(IOP Publishing, 2021-06-17)It is shown how the extended conformal Einstein field equations and a gauge based on the properties of conformal geodesics can be used to analyse the non-linear stability of Einstein spaces with negative scalar curvature. ... -
The conformal BMS group
(Springer Nature, 2017-11-06) -
The conformal Einstein field equations and the local extension of future null infinity
(AIP Publishing, 2021-10-01)We make use of an improved existence result for the characteristic initial value problem for the conformal Einstein equations to show that given initial data on two null hypersurfaces 𝒩⋆ and 𝒩′⋆ such that the conformal ... -
The conformal Einstein field equations with massless Vlasov matter
(Annales de l'Institut Fourier, 2021-06-07)We prove the stability of de Sitter space-time as a solution to the Einstein–Vlasov system with massless particles. The semi-global stability of Minkowski space-time is also addressed. The proof relies on conformal techniques, ... -
Conformal manifolds in four dimensions and chiral algebras
(IOP Publishing: Hybrid Open Access, 2016-10-21)Any N = 2 superconformal field theory (SCFT) in four dimensions has a sector of operators related to a two-dimensional chiral algebra containing a Virasoro sub-algebra. Moreover, there are well-known examples of isolated ... -
Conformal quivers and melting molecules
(2015-03-01)Abstract: Quiver quantum mechanics describes the low energy dynamics of a system of wrapped D-branes. It captures several aspects of single and multicentered BPS black hole geometries in four-dimensional N = 2 supergravity ... -
Conformal representations of spatial infinity and the asymptotic charges on vacuum spacetimes
(Queen Mary University of London, 2023)The laws of nature limit exploring the distant universe; we are less bounded in our quest using physical and mathematical theories. This exciting perspective motivates the study of the asymptotic structure of spacetimes ... -
Conformational Control of Tetrahydropyran-based Hybrid Dipeptide Catalysts Improves Activity and Stereoselectivity
(2019-03-14)© 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim Herein, we introduce and demonstrate how carbohydrates can be used as conformational control units of organocatalysts to tune their catalytic properties. New hybrid ... -
Conformational Dynamics and Responsiveness of Weak and Strong Polyelectrolyte Brushes: Atomistic Simulations of Poly(dimethyl aminoethyl methacrylate) and Poly(2-(methacryloyloxy)ethyl trimethylammonium chloride).
(2019-04-09)The complex solution behavior of polymer brushes is key to control their properties, including for biomedical applications and catalysis. The swelling behavior of poly(dimethyl aminoethyl methacrylate) (PDMAEMA) and ... -
Confronting system barriers for ST- elevation MI in low and middle income countries with a focus on India.
(2018)Our previous research found seven specific factors that cause system delays in ST-elevation Myocardial infarction management in developing countries. These delays, in conjunction with a lack of organized STEMI systems of ...