Results 71 to 80 of about 4,172 (259)

An Efficient Approach for Mixed Neutral Delay Differential Equations

Computation
In this paper, neutral delay differential equations, which contain constant and proportional terms, termed mixed neutral delay differential equations, are solved numerically.
Rupal Aggarwal, Giriraj Methi, Ravi P. Agarwal, Basharat Hussain   +3 more
doaj   +1 more source

A unified approach for the solution of the Fokker-Planck equation

, 2000
This paper explores the use of a discrete singular convolution algorithm as a unified approach for numerical integration of the Fokker-Planck equation. The unified features of the discrete singular convolution algorithm are discussed.
(Qian L W, Brennan M J, Brey J J, Canuto C, Caroli B, Chang J S, Cox J C, Dahmen W, Dow J O, Ermak D L, Finlayson B A, Fornberg B, Forsythe G E, G W Wei, Hongler M O, Indira R, Jawerth B, Kadanoff L P, Kho T H, Kometani K, Kwok Y K, Larson E W, Muñoz M A, Qian L W, Risken H, Schult R L, Shizgal B, Suzuki M, Tian Y, Wei G W, Wong E   +30 more
core   +2 more sources

Alaskan Ridge Blocking and Associated Winter Cold Conditions Over North America

International Journal of Climatology, EarlyView.
Multi‐decadal (1979–2023) analysis reveals that wintertime reductions in the meridional gradient of potential vorticity (PVy) over the Bering Sea are recurrent but episodic features of North Pacific circulation. These suppressed PVy states consistently co‐occur with amplified Alaskan ridging, weakened mid‐tropospheric westerlies and a downstream warm ...
Varunesh Chandra, James E. Overland, Muyin Wang   +2 more
wiley   +1 more source

Computing continuous-time growth models with boundary conditions via wavelets. [PDF]

This paper presents an algorithm for solving boundary value differential equations, which often arise in economics from the application of Pontryagin’s maximum principle.
Esteban Bravo, Mercedes, Vidal-Sanz, Jose M.   +1 more
core   +3 more sources

Feedback Control Method Using Haar Wavelet Operational Matrices for Solving Optimal Control Problems

Abstract and Applied Analysis, 2013
Most of the direct methods solve optimal control problems with nonlinear programming solver. In this paper we propose a novel feedback control method for solving for solving affine control system, with quadratic cost functional, which makes use of only ...
Waleeda Swaidan, Amran Hussin
doaj   +1 more source

The solution of multi-scale partial differential equations using wavelets

, 1998
Wavelets are a powerful new mathematical tool which offers the possibility to treat in a natural way quantities characterized by several length scales.
Beylkin, Beylkin, Beylkin, Deslauriers, Froehlich, Goedecker, Lippert, Oleg Ivanov, Stefan Goedecker, Sweldens, Sweldens   +10 more
core   +1 more source

Technology Development Outsourcing: When to Join Forces With a Rival?

Journal of Operations Management, EarlyView.
ABSTRACT Knowing the challenges of collaborating with a competitor in developing new technologies, firms sometimes still choose a competitor instead of a noncompeting technology provider. To explore why, this study adopts an inter‐organizational trust view to explain the formation of a technology development outsourcing relationship.
Tingting Yan, Hubert Pun, Dina Ribbink
wiley   +1 more source

A highly accurate numerical method for solving boundary value problem of generalized Bagley‐Torvik equation

Mathematical Methods in the Applied Sciences, EarlyView.
A highly accurate numerical method is given for the solution of boundary value problem of generalized Bagley‐Torvik (BgT) equation with Caputo derivative of order 0<β<2$$ 0<\beta <2 $$ by using the collocation‐shooting method (C‐SM). The collocation solution is constructed in the space Sm+1(1)$$ {S}_{m+1}^{(1)} $$ as piecewise polynomials of degree at ...
Suzan Cival Buranay, Mtema James Chin, Nazim I. Mahmudov   +2 more
wiley   +1 more source

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo, Precious Sibanda, S. P. Goqo   +2 more
wiley   +1 more source

VIM-Based Dynamic Sparse Grid Approach to Partial Differential Equations

The Scientific World Journal, 2014
Combining the variational iteration method (VIM) with the sparse grid theory, a dynamic sparse grid approach for nonlinear PDEs is proposed in this paper. In this method, a multilevel interpolation operator is constructed based on the sparse grids theory
Shu-Li Mei
doaj   +1 more source