Results 11 to 20 of about 2,484,606 (341)
New Anisotropic Exact Solution in Multifield Cosmology
Universe, 2021 In the case of two-scalar field cosmology, and specifically for the Chiral model, we determine an exact solution for the field equations with an anisotropic background space.
Andronikos Paliathanasis
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Exact solutions in massive gravity [PDF]
Classical and Quantum Gravity, 2013 17 pages, 4 figures.
Gustavo Niz +3 more
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Mathematics, 2023 This article explores adapted mathematical methods to solve the coupled nonlinear Schrödinger (C-NLS) equation through analytical and numerical methods.
Taghread Ghannam Alharbi +1 more
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Exact solution for granular flows [PDF]
International Journal for Numerical and Analytical Methods in Geomechanics, 2012 SUMMARYIn this paper, we present the exact solution of the Riemann problem for the nonlinear one‐dimensional so‐called shallow‐water or Saint‐Venant equations with friction proposed by SAVAGE and HUTTER to describe debris avalanches. This model is based on the depth‐averaged thin layer approximation of granular flows over sloping beds and takes into ...
Faccanoni, Gloria, Mangeney, Anne
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Hertz elastic dynamics of two colliding elastic spheres
Results in Physics, 2021 This paper revisits a classic problem in physics — Hertz elastic dynamics of two colliding elastic spheres. This study obtains impact period in terms of hypergeometric function and successfully combines Deresiewicz’s three segmental solutions into one ...
B.H. Sun
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An exact solution of truss vibration problems [PDF]
Proceedings of the Estonian Academy of Sciences, 2019 The Elements by a System of Transfer equations (EST) method offers exact solutions to various vibration problems of trusses, beams, and frames. The method can be regarded as an improved or modified transfer matrix method.
Andres Lahe +2 more
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Anisotropic Stars: Exact Solutions [PDF]
General Relativity and Gravitation, 2002 We study the effects of anisotropic pressure on the properties of spherically symmetric, gravitationally bound objects. We consider the full general relativistic treatment of this problem and obtain exact solutions for various form of equations of state connecting the radial and tangential pressures.
Marcelo Gleiser, Krsna Dev
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Results in Physics, 2023 Numerous scientific fields depend on precise solutions, which can be obtained for nonlinear partial differential equations (PDEs) through various techniques. It is important to note that solutions obtained through different approaches can vary.
Saqib Khaliq +5 more
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Exact solutions to supergravity [PDF]
Nuclear Physics B, 1997 18 pages, latex, uses a4.sty, no ...
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In search of exact solutions [PDF]
Nature, 2001 Many-body systems, such as electrons flowing in a superconductor, are among the most difficult theoretical problems to study. A new family of exactly solvable models may offer some answers.
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