Results 1 to 10 of about 943,585 (118)

On the complete integrability and linearization of nonlinear ordinary differential equations - Part II: Third order equations [PDF]

open access: yes, 2005
We introduce a method for finding general solutions of third-order nonlinear differential equations by extending the modified Prelle-Singer method. We describe a procedure to deduce all the integrals of motion associated with the given equation so that ...
Chandrasekar, V. K.   +2 more
core   +2 more sources

Formula manipulation in the bond graph modelling and simulation of large mechanical systems [PDF]

open access: yes, 1985
A multibond graph element for a general single moving body is derived. A multibody system can easily be described as an interconnection of these elements.
Bos, A.M., Tiernego, M.J.L.
core   +3 more sources

The variational symmetries and conservation laws in classical theory of Heisenberg (anti)ferromagnet [PDF]

open access: yes, 2002
The nonlinear partial differential equations describing the spin dynamics of Heisenberg ferro and antiferromagnet are studied by Lie transformation group method.
A.S. Ovchinnikov   +15 more
core   +2 more sources

Traveling wave solution by differential transformation method and reduced differential transformation method

open access: yesAlexandria Engineering Journal, 2016
AbstractThe present study further examines two recent semi-analytic methods, a reduced order of nonlinear differential transformation method (also called RDTM) and differential transformation method along with Pade approximation to discuss Jaulent–Miodek and coupled Whitham–Broer–Kaup equations.
Hamed Faghanpour Ganji   +3 more
openaire   +2 more sources

Convergence of the Euler-Maruyama method for multidimensional SDEs with discontinuous drift and degenerate diffusion coefficient [PDF]

open access: yes, 2018
We prove strong convergence of order $1/4-\epsilon$ for arbitrarily small $\epsilon>0$ of the Euler-Maruyama method for multidimensional stochastic differential equations (SDEs) with discontinuous drift and degenerate diffusion coefficient.
Leobacher, Gunther   +1 more
core   +2 more sources

The $a_{3/2}$ heat kernel coefficient for oblique boundary conditions [PDF]

open access: yes, 1998
We present a method for the calculation of the $a_{3/2}$ heat kernel coefficient of the heat operator trace for a partial differential operator of Laplace type on a compact Riemannian manifold with oblique boundary conditions.
Abramowitz M   +35 more
core   +2 more sources

Linearly Solvable Stochastic Control Lyapunov Functions [PDF]

open access: yes, 2016
This paper presents a new method for synthesizing stochastic control Lyapunov functions for a class of nonlinear stochastic control systems. The technique relies on a transformation of the classical nonlinear Hamilton-Jacobi-Bellman partial differential ...
Burdick, Joel W.   +2 more
core   +3 more sources

A Numerical Method for Partial Differential Algebraic Equations Based on Differential Transform Method [PDF]

open access: yesAbstract and Applied Analysis, 2013
Summary: We consider linear partial differential algebraic equations (LPDAEs) of the form \(Au_t(t, x) + Bu_{xx}(t, x) + Cu(t, x) = f(t, x)\), which have at least one singular matrix of \(A, B \in \mathbb R^{n \times n}\). We first introduce a uniform differential time index and a differential space index. The initial conditions and boundary conditions
Murat Osmanoglu, Mustafa Bayram
openaire   +4 more sources

Wronskian differential formula for k-confluent SUSY QM

open access: yes, 2015
The confluent SUSY QM usually involves a second-order SUSY transformation where the two factorization energies converge to a single value. In order to achieve it, one generally needs to solve an indefinite integral, which limits the actual systems to ...
Bermudez, David
core   +1 more source

Differential Transform Method for Some Delay Differential Equations

open access: yesApplied Mathematics, 2015
This paper concentrates on the differential transform method (DTM) to solve some delay differential equations (DDEs). Based on the method of steps for DDEs and using the computer algebra system Mathematica, we successfully apply DTM to find the analytic solution to some DDEs, including a neural delay differential equation.
Baoqing Liu, Xiaojian Zhou, Qikui Du
openaire   +2 more sources

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