External Approximation Schemes, A-Proper Operators, and the Difference Method

1990 ◽  
pp. 978-996
Author(s):  
Eberhard Zeidler
Keyword(s):  
Difference Method ◽  
Approximation Schemes ◽  
The Difference

scholarly journals Stable discretization methods with external approximation schemes

1995 ◽  
Vol 8 (4) ◽  
pp. 405-413 ◽  
Author(s):  
Ram U. Verma
Keyword(s):  
Differential Equations ◽  
Nonlinear Equations ◽  
Difference Method ◽  
Approximation Scheme ◽  
Approximation Schemes ◽  
Discretization Methods ◽  
Elliptic Differential Equations ◽  
The Difference ◽  
Quasilinear Elliptic

We investigate the external approximation-solvability of nonlinear equations- an upgrade of the external approximation scheme of Schumann and Zeidler [3] in the context of the difference method for quasilinear elliptic differential equations.

scholarly journals The search of the anisotropy of the primary cosmic radiation by the difference method

2017 ◽  
Vol 145 ◽  
pp. 03003
Author(s):  
Victor Pavlyuchenko ◽  
Romen Martirosov ◽  
Natalia Nikolskaya ◽  
Anatoly Erlykin
Keyword(s):  
Difference Method ◽  
Cosmic Radiation ◽  
Primary Cosmic Radiation ◽  
The Difference

Study and Simulate the Air Pollution Based on the Finite Difference Method

2012 ◽  
Vol 518-523 ◽  
pp. 2820-2824
Author(s):  
Yi Ni Guo ◽  
Yan Zhang ◽  
Jian Wang ◽  
Ye Huang
Keyword(s):  
Finite Element Method ◽  
Air Pollution ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
The Finite Element Method ◽  
Liquid Diffusion ◽  
Continuous Problems ◽  
The Finite Difference Method ◽  
The Difference

The finite difference method that is the finite element method is used to solve the plane continuous problems. In this article, the theory and method of the finite difference method, as well as the application on the boundary problem are introduced. By analyzing the potential flew field equation and liquid diffusion equation, they are discreted using the difference method and the numerical analysis under certain boundary condition is conducted. In air pollution, the smoke in the diffusion is typical planar continuous problems. In this paper, the finite difference method is used to analyse and simulate the spread of the smoke.

scholarly journals Asymmetric Fixed Effects Models for Panel Data

2018 ◽  
Author(s):  
Paul D Allison
Keyword(s):  
Logistic Regression ◽  
Panel Data ◽  
Opposite Direction ◽  
Difference Method ◽  
Fixed Effects ◽  
Regression Models ◽  
Social Phenomena ◽  
Logistic Regression Models ◽  
Fixed Effects Models ◽  
The Difference

Standard fixed effects methods presume that effects of variables are symmetric: the effect of increasing a variable is the same as the effect of decreasing that variable but in the opposite direction. This is implausible for many social phenomena. York and Light (2017) showed how to estimate asymmetric models by estimating first-difference regressions in which the difference scores for the predictors are decomposed into positive and negative changes. In this paper, I show that there are several aspects of their method that need improvement. I also develop a data generating model that justifies the first-difference method but can be applied in more general settings. In particular, it can be used to construct asymmetric logistic regression models.

scholarly journals Urban Change Detection in TerraSAR Image Using the Difference Method and SAR Coherence Coefficient

2018 ◽  
Vol 11 (3) ◽  
pp. 18-23 ◽  
Author(s):  
Zhang Xuedong ◽  
◽  
Liu Wenxi ◽  
He Shuguang ◽  
◽  
...  
Keyword(s):  
Change Detection ◽  
Difference Method ◽  
Urban Change ◽  
The Difference

scholarly journals How Precisely can the Difference Method Determine the pNN Coupling Constant?

2000 ◽  
Vol T87 (1) ◽  
pp. 53 ◽  
Author(s):  
B. Loiseau ◽  
T. E. O. Ericson
Keyword(s):  
Difference Method ◽  
Coupling Constant ◽  
The Difference

The difference method of solving the conjugate problem of heat exchange during gas flow in a thick-walled channel between communicating vessels

1977 ◽  
Vol 33 (6) ◽  
pp. 1497-1503
Author(s):  
G. T. Aldoshin ◽  
V. I. Zhuk ◽  
B. �. K�rt ◽  
K. M. Shlyakhtina
Keyword(s):  
Heat Exchange ◽  
Difference Method ◽  
Gas Flow ◽  
Conjugate Problem ◽  
Walled Channel ◽  
The Difference
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