Results 31 to 40 of about 53,514 (278)

Couple of the Variational Iteration Method and Legendre Wavelets for Nonlinear Partial Differential Equations

open access: yesJournal of Applied Mathematics, 2013
This paper develops a modified variational iteration method coupled with the Legendre wavelets, which can be used for the efficient numerical solution of nonlinear partial differential equations (PDEs). The approximate solutions of PDEs are calculated in
Fukang Yin   +3 more
doaj   +1 more source

In-Plane Free Vibration Analysis of a Scimitar-Type Rotating Curved Beam Using the Adomian Modified Decomposition Method

open access: yesMathematical and Computational Applications, 2020
Free in-plane vibrations of a scimitar-type nonprismatic rotating curved beam, with a variable cross-section and increasing sweep along the leading edge, are calculated using an innovative, efficient and accurate solver called the Adomian modified ...
Desmond Adair, Martin Jaeger
doaj   +1 more source

Neural Network-Based Symbolic Computation Algorithm for Solving (2+1)-Dimensional Yu-Toda-Sasa-Fukuyama Equation

open access: yesMathematics
This paper presents a Neural Network-Based Symbolic Computation Algorithm (NNSCA) for solving the (2+1)-dimensional Yu-Toda-Sasa-Fukuyama (YTSF) equation.
Jiang-Long Shen   +3 more
doaj   +1 more source

New Exact Jacobi Elliptic Function Solutions for the Coupled Schrödinger-Boussinesq Equations

open access: yesJournal of Applied Mathematics, 2013
A general algebraic method based on the generalized Jacobi elliptic functions expansion method, the improved general mapping deformation method, and the extended auxiliary function method with computerized symbolic computation is proposed to construct ...
Baojian Hong, Dianchen Lu
doaj   +1 more source

Generic symbolic parameters varying systems frameworks versus other techniques: Returning back to the roots

open access: yesAlexandria Engineering Journal, 2018
This paper addresses the problem of exact generic symbolic formulation and solution of Parameters Varying Systems (PVS) problems in control, systems, and optimization.
Hassen Taher Dorrah   +2 more
doaj   +1 more source

Real root finding for equivariant semi-algebraic systems [PDF]

open access: yes, 2018
Let $R$ be a real closed field. We consider basic semi-algebraic sets defined by $n$-variate equations/inequalities of $s$ symmetric polynomials and an equivariant family of polynomials, all of them of degree bounded by $2d < n$.
Bank B.   +5 more
core   +3 more sources

A Hyper-Dual Number Approach to Higher-Order Derivative Computation

open access: yesAxioms
This paper develops a theoretical framework for the computation of higher-order derivatives based on the algebra of hyper-dual numbers. Extending the classical dual number system, hyper-dual numbers provide a natural and rigorous mechanism for encoding ...
Ji Eun Kim
doaj   +1 more source

Aligator.jl - A Julia Package for Loop Invariant Generation

open access: yes, 2018
We describe the Aligator.jl software package for automatically generating all polynomial invariants of the rich class of extended P-solvable loops with nested conditionals.
A Humenberger   +3 more
core   +2 more sources

All hyperbolic Coxeter $n$-cubes

open access: yes, 2018
Beside simplices, $n$-cubes form an important class of simple polyhedra. Unlike hyperbolic Coxeter simplices, hyperbolic Coxeter $n$-cubes are not classified.
Jacquemet, Matthieu, Tschantz, Steven T.
core   +1 more source

Nonlinear Waveforms for Ion-Acoustic Waves in Weakly Relativistic Plasma of Warm Ion-Fluid and Isothermal Electrons

open access: yesAdvances in Mathematical Physics, 2012
The reductive perturbation method has been employed to derive the Korteweg-de Vries (KdV) equation for small- but finite-amplitude electrostatic ion-acoustic waves in weakly relativistic plasma consisting of warm ions and isothermal electrons.
S. A. El-Wakil   +4 more
doaj   +1 more source

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