Results 11 to 20 of about 572,545 (279)
Analytically approximate solutions to higher derivative gravity [PDF]
We obtain analytical approximate black hole solutions for higher derivative gravity in the presence of Maxwell electromagnetic source. We construct near horizon and asymptotic solutions and then use these to obtain an approximate analytic solution using a continued fraction method to get a complete solution.
S. N. Sajadi +3 more
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Analytically approximation solution to $$R^{2}$$ gravity
AbstractIn this paper, we obtain analytical approximate black hole solutions in the framework of f(R) gravity and the absence of a cosmological constant. In this area, we apply the equations of motion of the theory to a spherically symmetric spacetime with one unknown function and derive black hole solutions without any constraints on the Ricci scalar.
Sajadi, Seyed Naseh +2 more
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Analytically approximation solution to Einstein-Cubic gravity
AbstractIn this work, we introduce analytical approximate black hole solutions in Einstein-Cubic gravity. To obtain complete solutions, we construct the near horizon and asymptotic solutions as the first step. Then, the approximate analytic solutions are obtained through continued-fraction expansion. We also compute the thermodynamic quantities and use
Sajadi, S., Hendi, S.
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Analytic Approximate Solution for Falkner-Skan Equation [PDF]
This paper deals with the Falkner-Skan nonlinear differential equation. An analytic approximate technique, namely, optimal homotopy asymptotic method (OHAM), is employed to propose a procedure to solve a boundary-layer problem. Our method does not depend upon small parameters and provides us with a convenient way to optimally control the convergence of
Vasile Marinca +2 more
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Analytical solution approximation for bearing [PDF]
The purpose of lubrication is to separate two surfaces sliding past each other with a film of some material which can be sheared without causing any damage to the surfaces. Reynolds equation is a basic equation for fluid lubrication which is applied in the bearing problem. This equation can be derived from Navier-Stokes equation and continuity equation.
Lukman Hanafi, M. Syifaul Mufid
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Approximate solutions for the skyrmion [PDF]
We reconsider the Euler-Lagrange equation for the Skyrme model in the hedgehog ansatz and study the analytical properties of the solitonic solution. In view of the lack of a closed form solution to the problem, we work on approximate analytical solutions.
Canal, C. A. Garcia +3 more
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New approximate analytical technique for the solution of time fractional fluid flow models
In this note, we broaden the utilization of an efficient computational scheme called the approximate analytical method to obtain the solutions of fractional-order Navier–Stokes model.
Umar Farooq +5 more
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Approximate analytical solutions for Kolmogorov’s equations
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Yang, Tianzhi +3 more
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Analytical solutions of cylindrical and spherical dust ion-acoustic solitary waves
In the present work, employing the conventional reductive perturbation method to the field equations of an unmagnetized dusty plasma consisting of inertial ions, Boltzmann electrons and stationary dust particles in the nonplanar geometry we derived ...
Essam. R. El-Zahar, Hilmi Demiray
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Energy-Based Criterion for Testing the Nonlinear Response Strength of Strong Nonlinear Oscillators
This article proposes a simple energy-based criterion developed to characterize four commonly identified responses, namely: linear, weakly nonlinear, moderately nonlinear and strongly nonlinear regimes.
Akuro Big-Alabo
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