Operator index reduction in electromagnetism

The aim of this work is introducing an index reduction technique in the operator level, thereby regularization of the high index differential-algebraic equations (DAEs) which are derived by spatial semi-discretization of the partial differential equations (PDEs) in electromagnetism can be avoided. T...

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Published in:Journal of computational and applied mathematics 2017-05, Vol.316, p.298-306
Main Author: Niroomand Rad, Helia
Format: Article
Language:English
Subjects:
Differentiation index
Discretization
Electromagnetism
Galerkin method
Galerkin methods
Mathematical analysis
Minimal extension technique
Operator differential-algebraic equations
Operators
Operators (mathematics)
Partial differential equations
Reduction
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description The aim of this work is introducing an index reduction technique in the operator level, thereby regularization of the high index differential-algebraic equations (DAEs) which are derived by spatial semi-discretization of the partial differential equations (PDEs) in electromagnetism can be avoided. The introduced technique is applied to the obtained operator DAE system which is resulted by considering the PDE system in the weak sense for the suitable Hilbert spaces. In addition, for the discretization, the Galerkin method is applied which in turn provides automatically nice properties of the discrete operators for the index determination.
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subjects Differentiation index
Discretization
Electromagnetism
Galerkin method
Galerkin methods
Mathematical analysis
Minimal extension technique
Operator differential-algebraic equations
Operators
Operators (mathematics)
Partial differential equations
Reduction
title Operator index reduction in electromagnetism
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