Structural Stability and General Relativity by Spiros Cotsakis

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Theory of Nonlocal Point Transformations in General Relativity by Massimo Tessarotto, Claudio Cremaschini

“…A discussion of the functional setting customarily adopted in General Relativity (GR) is proposed. This is based on the introduction of the notion of nonlocal point transformations (NLPTs). …”
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Review on the Pseudocomplex General Relativity and Dark Energy by Peter O. Hess

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Weak Gravity Limit in Newer General Relativity by Alexey Golovnev, Sofia Klimova, Alla N. Semenova, Vyacheslav P. Vandeev

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Editorial: Experimental predictions in general relativity: what now? by Fabiano Feleppa, Fabiano Feleppa, Elmo Benedetto, Gerardo Iovane, Fabrizio Tamburini, Ignazio Licata

Subjects: “…general relativity…”
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Dyonic regular black bounce solutions in general relativity by Ednaldo L. B. Junior, José Tarciso S. S. Junior, Francisco S. N. Lobo, Manuel E. Rodrigues, Luís F. Dias da Silva, Henrique A. Vieira

“…Abstract This work explores dyonic black bounce (BB) solutions within the framework of general relativity (GR), coupled with nonlinear electrodynamics (NLED) and scalar fields (SFs). …”
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McVittie–Plummer Spacetime: Plummer Sphere Immersed in the FLRW Universe by Javad Tabatabaei, Shant Baghram, Bahram Mashhoon

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OGRePy: An Object-Oriented General Relativity Package for Python by Barak Shoshany

Subjects: “…general relativity…”
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Long-Range Scalar Forces in Five-Dimensional General Relativity by L. L. Williams

“…We present new results regarding the long-range scalar field that emerges from the classical Kaluza unification of general relativity and electromagnetism. The Kaluza framework reproduces known physics exactly when the scalar field goes to one, so we studied perturbations of the scalar field around unity, as is done for gravity in the Newtonian limit of general relativity. …”
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Fermat's principle in general relativity via Herglotz variational formalism by Joanna Piwnik, Joanna Gonera, Piotr Kosiński

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Factorization of the Hilbert space of eternal black holes in general relativity by Vijay Balasubramanian, Ben Craps, Juan Hernandez, Mikhail Khramtsov, Maria Knysh

“…These microstates, which contain heavy matter shells behind the horizon and form an overcomplete basis of the Hilbert space, exist in any theory of gravity with general relativity as its low energy limit. Using this representation of the microstates, we show that the trace of operators dual to functions of the Hamiltonians of the left and right holographic CFTs factorizes into a product over left and right factors to leading order in the semiclassical limit. …”
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A Priori “Imprinting” of General Relativity Itself on Some Tests of It? by Lorenzo Iorio

“…We investigate the effect of possible a priori “imprinting” effects of general relativity itself on satellite/spacecraft-based tests of it. …”
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Barrow holographic dark energy models in Lyra and general relativity theories by Sezgin Aygün, Arzu Aktaş

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Gravastars formation with back-reaction effects from extended general relativity by Mauricio Bellini

“…Abstract Using an extended theory of General Relativity that incorporates normalized relativistic velocities, where the boundary terms in the varied Einstein–Hilbert action are considered. …”
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LARES: A New Satellite Specifically Designed for Testing General Relativity by Antonio Paolozzi, Ignazio Ciufolini, Claudio Paris, Giampiero Sindoni

“…Those design characteristics are required to perform an accurate test of frame dragging and specifically a test of Lense-Thirring effect, predicted by General Relativity. LARES satellite, although passive, with 92 laser retroreflectors on its surface, was a real engineering challenge in terms of both manufacturing and testing. …”
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New Developments in Cosmology and Gravitation from Extended Theories of General Relativity by Mauricio Bellini, Kishor Adhav, José Edgar Madriz Aguilar, Dandala R. K. Reddy

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A classical Bousso bound for higher derivative corrections to general relativity by Sayantani Bhattacharyya, Parthajit Biswas, Nilay Kundu

“…Abstract Focussing on theories for which the higher derivative terms are considered as small corrections in the Lagrangian to Einstein’s two-derivative theory of general relativity (GR), we prove the classical version of the covariant entropy bound (also known as the Bousso bound) in arbitrary diffeomorphism invariant gravitational theories. …”
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Gravitational Hamiltonian Systems and the Retarded Gravity Inequality by Asher Yahalom

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Many Phases in a Hairy Box in Three Dimensions by Shoichiro Miyashita

Subjects: “…general relativity…”
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Can Neutron Star Tidal Effects Obscure Deviations from General Relativity? by Stephanie M. Brown, Badri Krishnan, Rahul Somasundaram, Ingo Tews

“…One of the main goals of gravitational-wave astrophysics is to study gravity in the strong-field regime and constrain deviations from general relativity (GR). Any such deviation affects not only binary dynamics and gravitational-wave emission but also the structure and tidal properties of compact objects. …”
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