Results 31 to 40 of about 332,833 (326)

‎Exact analytical solution of tempered fractional heat-like (diffusion) equations by the modified variational iteration method [PDF]

open access: yesJournal of Mahani Mathematical Research
‎    This paper introduces a modified version of the Variational Iteration Method, incorporating $\mathbb{P}$-transformation. We propose a novel semi-analytical technique named the modified variational iteration method   for addressing fractional ...
Mohammad Hossein Akrami   +2 more
doaj   +1 more source

Different Groups of Variational Principles for Whitham-Broer-‎Kaup Equations in Shallow Water [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2020
Because the variational theory is the theoretical basis for many kinds of analytical or numerical methods, it is an essential but difficult task to seek explicit functional formulations whose extrema are sought by the nonlinear and complex models. By the
Xiao-Qun Cao   +4 more
doaj   +1 more source

An Application of He's Variational Iteration Method for Solving Duffing - Van Der Pol Equation [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics, 2013
In this paper, we apply He's variational iteration method (VIM) and the Adomian decomposition method (ADM) to approximate the solution of Duffing-Van Der Pol equation (DVP).
Ann Al-Sawoor, Merna Samarchi
doaj   +1 more source

Performance comparison between maximum likelihood estimation and variational method for estimating simple linear regression parameter [PDF]

open access: yesITM Web of Conferences
Variational estimation method is a deterministic approximation technique which involves Bayesian framework while giving a point estimate instead of the usual Bayesian interval estimation. The linear regression model, which has always been a popular model,
Widyaningsih Yekti   +2 more
doaj   +1 more source

Further validation to the variational method to obtain flow relations for generalized Newtonian fluids [PDF]

open access: yes, 2015
We continue our investigation to the use of the variational method to derive flow relations for generalized Newtonian fluids in confined geometries.
Sochi, Taha
core   +3 more sources

Variational Homotopy Perturbation Method for Solving Fractional Initial Boundary Value Problems

open access: yesAbstract and Applied Analysis, 2012
A variational homotopy perturbation method (VHPM) which is based on variational iteration method and homotopy perturbation method is applied to solve the approximate solution of the fractional initial boundary value problems.
Yanqin Liu
doaj   +1 more source

A field theoretic approach to master equations and a variational method beyond the Poisson ansatz

open access: yes, 2007
We develop a variational scheme in a field theoretic approach to a stochastic process. While various stochastic processes can be expressed using master equations, in general it is difficult to solve the master equations exactly, and it is also hard to ...
Dickman R   +10 more
core   +1 more source

Long-Run Accuracy of Variational Integrators in the Stochastic Context [PDF]

open access: yes, 2010
This paper presents a Lie-Trotter splitting for inertial Langevin equations (Geometric Langevin Algorithm) and analyzes its long-time statistical properties. The splitting is defined as a composition of a variational integrator with an Ornstein-Uhlenbeck
Bou-Rabee N.   +3 more
core   +3 more sources

Black Box Variational Inference [PDF]

open access: yes, 2013
Variational inference has become a widely used method to approximate posteriors in complex latent variables models. However, deriving a variational inference algorithm generally requires significant model-specific analysis, and these efforts can hinder ...
Blei, David M.   +2 more
core   +2 more sources

Stochastic Variational Approach to Minimum Uncertainty States [PDF]

open access: yes, 1995
We introduce a new variational characterization of Gaussian diffusion processes as minimum uncertainty states. We then define a variational method constrained by kinematics of diffusions and Schr\"{o}dinger dynamics to seek states of local minimum ...
Illuminati, F., Viola, L.
core   +2 more sources

Home - About - Disclaimer - Privacy