Results 11 to 20 of about 165,391 (125)
World society and field theory: The infiltration of development into humanitarianism
The British Journal of Sociology, Volume 73, Issue 2, Page 402-420, March 2022., 2022 Abstract Differentiated modern society is commonly viewed as an aggregation of various fields, yet the question of their boundaries is often a silent one. This article builds on this lacuna to argue that cultural globalization should be acknowledged and added to the equation.
Nir Rotem
wiley +1 more source
Gravitational lensing formalism in a curved arc basis: A continuous description of observables and degeneracies from the weak to the strong lensing regime [PDF]
, 2021 Gravitationally lensed curved arcs provide a wealth of information about the underlying lensing distortions. Extracting precise lensing information from extended sources is a key component in many studies aiming to answer fundamental questions about the Universe.
arxiv +1 more source
The anomaly that was not meant IIB
Fortschritte der Physik, Volume 70, Issue 1, January 2022., 2022 Abstract Type IIB supergravity enjoys a discrete non‐Abelian duality group, which has potential quantum anomalies. In this paper we explicitly compute these, and present the bordism group that controls them, modulo some physically motivated assumptions.
Arun Debray +3 more
wiley +1 more source
Some Bianchi Type Viscous Holographic Dark Energy Cosmological Models in the Brans–Dicke Theory
Advances in Astronomy, Volume 2022, Issue 1, 2022., 2022 In this article, we analyze Bianchi type–II, VIII, and IX spatially homogeneous and anisotropic space‐times in the background of the Brans–Dicke theory of gravity within the framework of viscous holographic dark energy. To solve the field equations, we have used the relation between the metric potentials as R = Sn and the relation between the scalar ...
M. Vijaya Santhi +4 more
wiley +1 more source
Shaping by Internal Material Frustration: Shifting to Architectural Scale
Advanced Science, Volume 8, Issue 24, December 22, 2021., 2021 Self‐shaping by material frustration is demonstrated for the first time at an architectural scale and in structural materials, typical of the construction field. Quantitative comparison with theoretical predictions, as well as scaling‐up and gravitation effect are presented.
Arielle Blonder, Eran Sharon
wiley +1 more source
Gravitational lensing by charged black hole in regularized 4D Einstein–Gauss–Bonnet gravity
European Physical Journal C: Particles and Fields, 2020 Among the higher curvature gravities, the most extensively studied theory is the so-called Einstein–Gauss–Bonnet (EGB) gravity, whose Lagrangian contains Einstein term with the GB combination of quadratic curvature terms, and the GB term yields ...
Rahul Kumar +2 more
doaj +1 more source
Strong Gravitational Lensing in Horndeski theory [PDF]
, 2023 In this paper we build the general formalism of gravitational lensing in luminal Horndeski theories, deriving the Jacobi matrix equation and the general angular diameter distance in these theories through the screen space formalism. We generalize the focusing and multiple lensing theorems to include Scalar Tensor theories belonging to the class and ...
arxiv +1 more source
Weak Gravitational Lensing [PDF]
Phys.Rept.340:291-472,2001, 1999 We review theory and applications of weak gravitational lensing. After summarising Friedmann-Lemaitre cosmological models, we present the formalism of gravitational lensing and light propagation in arbitrary space-times. We discuss how weak-lensing effects can be measured.
arxiv +1 more source
Particle dark matter searches in the anisotropic sky
Frontiers in Physics, 2014 Anisotropies in the electromagnetic emission produced by dark matter annihilation or decay in the extragalactic sky are a recent tool in the quest for a particle dark matter evidence.
Nicolao eFornengo +3 more
doaj +1 more source
Multiple imaging by gravitational waves [PDF]
Int.J.Mod.Phys.D7:409-429,1998, 1997 Gravitational waves act like lenses for the light propagating through them. This phenomenon is described using the vector formalism employed for ordinary gravitational lenses, which was proved to be applicable also to a non-stationary spacetime, with the appropriate modifications. In order to have multiple imaging, an approximate condition analogous to
arxiv +1 more source