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A new approach to some Sobolev injections in R^n parallelepiped
Sobolev injections parallelepiped
2010/9/20
Using eigenvalues and eigenfunctions of −Δ with homogeneous Dirichlet boundary conditions on ∂Ω, where Ω is a parallelepiped of IRn , we prove some Sobolev injections.
A new approach to estimate the mix efficiency in data envelopment analysis
Data Envelopment Analysis Mix efficiency
2010/9/26
Recently, in Data Envelopment Analysis (DEA) methodology, there are two type of efficiency measurement; radial and non-radial measure represented by the Charnes-Cooper-Rhodes (CCR) and the slack-based...
A new approach to incorporate uncertainty into Euler's method
Euler’s Method Fuzzy Initial Value Fuzzy Set
2010/9/27
Fuzzy set provides a powerful technique to introduce uncertainty into numerical methods. However, the computations of fuzzy sets often face difficult problems. This is due to non-applicability of comm...
New approach to mixture of the Adomian decomposition and homotopy perturbation method for approximate and analytical solution of integral equations and fractional differential equations
Homotopy perturbation method Adomian Decomposition method
2010/9/17
Nonlinear phenomena play a crucial role in applied mathematics and physics. Analytic solutions to the nonlinear equations are of fundamental importance. Various methods for obtaining Analytic solution...
A new approach of fracture mechanics
finite element anisotropic mesh crack numerical methods
2009/2/13
The present paper is a first step towards modelling cracks within the frame of
finite element anisotropic meshes. We will consider 2-dimensional models with
straight cracks. The non-classical FE mod...
A new approach of fracture mechanics
finite element anisotropic mesh crack numerical methods
2009/1/9
The present paper is a first step towards modelling cracks within the frame of
finite element anisotropic meshes. We will consider 2-dimensional models with
straight cracks. The non-classical FE mod...
A new approach to the gas dynamics equation: An application of the variational iteration method
Variational iteration method Nonlinear gas dynamics equation
2010/9/14
In this paper, He’s variational iteration method (VIM) has been used to obtain solution of nonlinear gas dynamics equation. This method is based on Lagrange multipliers for identification of optimal ...
Lorentz force effects on the orbit of a charged artificial satellite: A new approach
artificial satellite A new approach
2010/9/15
A charged artificial satellite moving relative to a magnetic field accelerates
in a direction perpendicular to its velocity and the magnetic field due to the Lorentz
force. The geomagnetic field is ...
A new approach for efficiency measures by fuzzy linear programming and application in insurance organization
fuzzy linear programming problem Data envelopment analysis DEA
2010/9/15
Data envelopment analysis is widely applied approach for measuring the relative efficiencies of a set of decision making units(DMUs) using various inputs to produce various output are limited to crisp...