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Generalized teleparallel de Sitter geometries [PDF]
European Physical Journal C: Particles and Fields, 2023 Theories of gravity based on teleparallel geometries are characterized by the torsion, which is a function of the coframe, derivatives of the coframe, and a zero curvature and metric compatible spin-connection.
A. A. Coley +3 more
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Black holes and non-perturbative gravitational waves in f(R) gravity
European Physical Journal C: Particles and Fields, 2023 Exact solutions of spherically symmetric black hole and gravitational wave are explored in f(R) gravity in arbitrary dimension. We find two exact solutions for the radiation and absorption of null dust.
Chunmei Liu, Hongsheng Zhang
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Note on the asymptotic structure of Kerr-Schild form
Journal of High Energy Physics, 2022 The Kerr-Schild form provides a natural way of realizing the classical double copy that relates exact solutions in general relativity to exact solutions in gauge theory. In this paper, we examine the asymptotic structure of Kerr-Schild form.
Pujian Mao, Weicheng Zhao
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Collapsing dynamics of relativistic fluid in modified gravity admitting a conformal Killing vector
European Physical Journal C: Particles and Fields, 2023 The collapsing dynamics of relativistic fluid are explored in f(R) gravity in detailed systematic manner for the non-static spherically symmetric spacetime satisfying the equation of the conformal Killing vector.
Kazuharu Bamba +4 more
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Charged black hole and radiating solutions in entangled relativity
European Physical Journal C: Particles and Fields, 2021 In this manuscript, we show that the external Schwarzschild metric can be a good approximation of exact black hole solutions of entangled relativity.
Olivier Minazzoli, Edison Santos
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New Riccati equations for radiating matter
European Physical Journal C: Particles and Fields, 2022 The relationship between radiating stars in general relativity and Riccati equations is investigated for a general matter distribution including the electromagnetic field and the cosmological constant.
Noeleen Naidoo +2 more
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Quadratic Theory of Gravity with a Scalar Field and Type I Shapovalov Wave Spacetimes
Universe, 2022 For the quadratic theory of gravity with a scalar field, exact solutions are found for gravitational-wave models in Shapovalov I-type spacetimes, which do not arise in models of the general theory of relativity.
Konstantin Osetrin +2 more
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European Physical Journal C: Particles and Fields, 2018 We elaborate on the anholonomic frame deformation method, AFDM, for constructing exact solutions with quasiperiodic structure in modified gravity theories, MGTs, and general relativity, GR.
Laurenţiu Bubuianu, Sergiu I. Vacaru
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Isotropic Perfect Fluids in Modified Gravity
Universe, 2023 We generate the Einstein–Gauss–Bonnet field equations in higher dimensions for a spherically symmetric static spacetime. The matter distribution is a neutral fluid with isotropic pressure.
Shavani Naicker +2 more
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European Physical Journal C: Particles and Fields, 2023 This study delves into the realm of solving Einstein’s field equations within the framework of general relativity. In this paper, we present an exact solution derived through the vanishing complexity approach and offer a comparative analysis with the ...
Satyanarayana Gedela, Ravindra K. Bisht
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