Results 21 to 30 of about 5,584,987 (319)

Analytically approximate solutions to higher derivative gravity [PDF]

open access: yesPhysical Review D, 2020
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
openaire   +2 more sources

Analytical Approximate Solutions of Nonlinear Fractional-Order Nonhomogeneous Differential Equations

open access: yesDiyala Journal of Engineering Sciences, 2022
Computational simulation of natural phenomenon is currently attracting increasing interest in applied mathematics and computational physics. Mathematical software for simulation is limited by the availability, speed, and parallelism of high-performance ...
Falade K. Iyanda   +3 more
doaj   +1 more source

Periodic analytic approximate solutions for the Mathieu equation [PDF]

open access: yesApplied Mathematics and Computation, 2015
Física Teórica, Atómica y ...
Manuel Gadella   +2 more
openaire   +5 more sources

Propagation and interaction between special fractional soliton and soliton molecules in the inhomogeneous fiber

open access: yesJournal of Advanced Research, 2022
Introduction: Fractional nonlinear models have been widely used in the research of nonlinear science. A fractional nonlinear Schrödinger equation with distributed coefficients is considered to describe the propagation of pi-second pulses in inhomogeneous
Gang-Zhou Wu   +3 more
doaj   +1 more source

On the benefit of ∈-efficient solutions in multi objective space mission design [PDF]

open access: yes, 2008
In this work we consider multi-objective space mission design problems. We will show that it makes sense from the practical point of view to consider in addition to the (Pareto) optimal solutions also nearly optimal ones since this increases ...
Vasile, M.   +2 more
core   +8 more sources

An Analytic Approximate Solution of the SIR Model

open access: yesApplied Mathematics, 2021
The SIR(D) epidemiological model is defined through a system of transcendental equations, not solvable by elementary functions. In the present paper those equations are successfully replaced by approximate ones, whose solutions are given explicitly in terms of elementary functions, originating, piece-wisely, from generalized logistic functions: they ...
openaire   +4 more sources

New approximate analytical technique for the solution of time fractional fluid flow models

open access: yesAdvances in Difference Equations, 2021
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
doaj   +1 more source

Approximate solutions in space mission design [PDF]

open access: yes, 2008
In this paper, we address multi-objective space mission design problems. From a practical point of view, it is often the case that,during the preliminary phase of the design of a space mission, the solutions that are actually considered are not 'optimal'
Vasile, M.   +8 more
core   +1 more source

Abundant new analytical and approximate solutions to the generalized Schamel equation

open access: yesPhysica Scripta, 2020
An exact solution of partial differential equations provides a lot of information for a model. Since obtaining such answers is generally very difficult or in some cases impossible, having powerful analytical methods in determining them seems very ...
B. Ghanbari, A. Akgül
semanticscholar   +1 more source

Analytic Approximate Solution for Falkner-Skan Equation [PDF]

open access: yesThe Scientific World Journal, 2014
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
openaire   +3 more sources

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