Results 1 to 10 of about 257,996 (166)
Fractal and Fractional, 2023 This paper studies the bifurcations of the exact solutions for the time–space fractional complex Ginzburg–Landau equation with parabolic law nonlinearity.
Wenjing Zhu +3 more
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Cosmological Solutions of Integrable F(R) Gravity Models with an Additional Scalar Field
Physical Sciences Forum, 2023 We consider F(R) cosmological models with a scalar field. For the R2 model in the spatially flat Friedmann–Lemaître–Robertson–Walker metric, the Ricci scalar R can smoothly change its sign during the evolution if and only if the scalar field is a phantom
Sergey Vernov, Vsevolod Ivanov
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EXACT INFLATIONARY SOLUTIONS [PDF]
International Journal of Modern Physics D, 1998 We present a new class of exact inflationary solutions for the evolution of a universe with spatial curvature, filled with a perfect fluid, a scalar field with potential V±(ϕ) = λ(ϕ2 ± δ2)2 and a cosmological constant Λ. With the V+(ϕ) potential and a negative cosmological constant, the scale factor experiments a graceful exit.
Piccinelli, Gabriella +2 more
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New traveling wave exact solutions to the coupled Klein–Gordon system of equations
Partial Differential Equations in Applied Mathematics, 2022 A system of coupled Klein–Gordon nonlinear partial differential equations are considered in this paper and several new families of exact solutions for this system are derived.
Subin P. Joseph
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Exact solutions in Chiral cosmology [PDF]
General Relativity and Gravitation, 2019 10 pages, no figures, title changed, version accepted for publication by Gen.
Andronikos Paliathanasis +2 more
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Results in Physics, 2023 Nonlinear Burgers equation with variable coefficients (BEVC) which involves mathematical physics in plasma and fluid dynamics and so on. Investigating the exact solutions of BEVC to show the different dynamics of wave phenomena becomes a hot topic both ...
Jianming Qi, Qinghao Zhu
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Riemann Problems and Exact Solutions for the p-System
Mathematics, 2022 In this paper, within the framework of the Method of Differential Constraints, the celebrated p-system is studied. All the possible constraints compatible with the original governing system are classified.
Natale Manganaro, Alessandra Rizzo
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Exact anyon black hole solutions
European Physical Journal C: Particles and Fields, 2018 We present the exact anyon solutions and study their energy conditions. It is shown that the exact anyon VdW solutions with $$b>0$$ b>0 are physically un-acceptable.
Wei Xu
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Exact solutions to supergravity [PDF]
Nuclear Physics B, 1997 18 pages, latex, uses a4.sty, no ...
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Some exact Bradlow vortex solutions
Journal of High Energy Physics, 2017 We consider the Bradlow equation for vortices which was recently found by Manton and find a two-parameter class of analytic solutions in closed form on nontrivial geometries with non-constant curvature.
Sven Bjarke Gudnason, Muneto Nitta
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