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Unstable regions of anisotropic relativistic spheres in higher dimensions: 《Communications in Theoretical Physics》2025年第3期112-129,共18页M Yousaf Bander Almutairi M Z Bhatti Z Yousaf A S Khan; supported by Researchers Supporting Project number:RSPD2024R650,King Saud University,Riyadh,Saudi Arabia(BA)。; In this work,we consider the collapse of a D-dimensional sphere in the framework of a higher-dimensional spherically symmetric space-time in which the gravitational action chosen is claimed to be somehow linked to the...; 关键词：GRAVITATION dynamical instability mathematical and relativistic aspects of cosmology mathematical physics

Gravitational Collapse and Expansion in the Newton Theory and General Relativity: 《Journal of Modern Physics》2025年第2期294-309,共16页Valery V. Vasiliev Leonid V. Fedorov; The paper is devoted to the study of the gravitational collapse within the framework of the spherically symmetric problem in the Newton theory and general relativity on the basis of the pressure-free model of the cont...; 关键词：Gravitational Collapse Newton Gravitation Theory General Relativity

Observer-Dependence in P vs NP: 《Journal of Modern Physics》2025年第1期6-51,共46页Logan Nye; We present a new perspective on the P vs NP problem by demonstrating that its answer is inherently observer-dependent in curved spacetime, revealing an oversight in the classical formulation of computational complexit...; 关键词：COMPLEXITY Computation Observer Theory GRAVITATION Information CRITICALITY

A Dark Matter Theory by Quantum Gravitation for Galaxies and Clusters: 《Journal of High Energy Physics, Gravitation and Cosmology》2024年第4期1749-1784,共36页Manuel Abarca; This paper develops an original theory of dark matter in the current ΛCDM framework, whose main hypothesis is that DM is generated by the own gravitational field, according to an unknown quantum gravitational phenome...; 关键词：Dark Matter Dark Energy GALAXIES Local Group of Galaxies CLUSTERS

Solving the Conundrum of Dark Matter and Dark Energy in Galaxy Clusters: 《Journal of High Energy Physics, Gravitation and Cosmology》2024年第4期1785-1805,共21页Manuel Abarca; This paper develops the Dark Matter by Quantum Gravitation theory, DMbQG theory hereafter, in clusters of galaxies in the cosmologic model ΛCDM of the Universe. Originally this theory was developed by the author for ...; 关键词：Dark Matter Dark Energy Galaxy Clusters Quantum Gravitation

Gravitation and the Unified Nature of All Kinds of Motion in Non-Empty Space (Part 1): 《Journal of High Energy Physics, Gravitation and Cosmology》2024年第4期1918-1932,共15页Yuri N. Ivanov Anton V. Pinchuk; The presented work examines the mechanism and conditions of self-motion in bodies as systems of interacting elements. It is shown how the oscillation parameters of these elements determine the mode of motion of the sy...; 关键词：GRAVITATION SELF-MOTION Phase Frequency Time Rate Standing Wave Potential Well Standing Wave Node MOMENTUM Quantity of Motion

Proposal of Modeling of Urban’s System Dynamics Speed,Density,Perceived Space Simulation of Ile de France: 《Revue Internationale de Géomatique》2024年第1期273-293,共21页Cyril Enault; The environment has become a major social issue in Western countries,especially in France.Today,the Ile-de-France region is at the heart of this new policy to control urban sprawl.Urban sprawl,and more specifically it...; 关键词：GRAVITATION density of population urban dynamic traffic theory SPEED proxemic

Universe Expansion and Gravitation Unified: 《International Journal of Astronomy and Astrophysics》2024年第4期259-276,共18页Antonio Medina; Aims: The expansion of the Universe and gravitation are considered different fundamental properties of the cosmos. We explore whether they are connected and propose an equation that links and unifies them. This equati...; 关键词：GRAVITATION UNIVERSE Cosmological Theories Visible Universe Hubble Expansion Cosmological Models Flat Space Cosmology Dark Energy Dark Matter Hubble Parameter Critical Density

Unified Field Equation Generated by Longitudinal Electromagnetic (LEM) Waves: 《Journal of Environmental Science and Engineering(B)》2024年第5期181-191,共11页Jiang Jian-zhong Zhang Xiang-qian; According to special relativity,the relationship of electromagnetic conversion in a linear moving vacuum and the relationship formula between the magnetic vector potential/scalar potential and the LEM(Longitudinal Ele...; 关键词：QED(quantum electrodynamics) LEM wave electromagnetic induction unified field equation artificial gravitation field.

Effect of Gravitational Formula Change on Gravitational Anomalies: 《Journal of Modern Physics》2024年第11期1632-1645,共14页Hans Peter Weber; The gravitational constant G is a basic quantity in physics, and, despite its relative imprecision, appears in many formulas, for example, also in the formulas of the Planck units. The “relative inaccuracy” lies in ...; 关键词：System of Units Planck Constants Gravitational Constant Variable Gravitation Equivalence Relations Number 137

GRAVITATION