dorsal/arxiv
View SchemaGeometric Finite Element Discretization of Maxwell Equations in Primal and Dual Spaces
| Authors | Bo He, F. L. Teixeira |
|---|---|
| Categories | |
| ArXiv ID | physics/0503013 |
| URL | https://arxiv.org/abs/physics/0503013 |
| DOI | 10.1016/j.physleta.2005.09.002 |
Abstract
Based on a geometric discretization scheme for Maxwell equations, we unveil a mathematical\textit{\}transformation between the electric field intensity $E$ and the magnetic field intensity $H$, denoted as Galerkin duality. Using Galerkin duality and discrete Hodge operators, we construct two system matrices, $[ X_{E}] $ (primal formulation) and $[ X_{H} % ] $ (dual formulation) respectively, that discretize the second-order vector wave equations. We show that the primal formulation recovers the conventional (edge-element) finite element method (FEM) and suggests a geometric foundation for it. On the other hand, the dual formulation suggests a new (dual) type of FEM. Although both formulations give identical dynamical physical solutions, the dimensions of the null spaces are different.
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"abstract": "Based on a geometric discretization scheme for Maxwell equations, we unveil a\nmathematical\\textit{\\}transformation between the electric field intensity $E$\nand the magnetic field intensity $H$, denoted as Galerkin duality. Using\nGalerkin duality and discrete Hodge operators, we construct two system\nmatrices, $[ X_{E}] $ (primal formulation) and $[ X_{H} % ] $ (dual\nformulation) respectively, that discretize the second-order vector wave\nequations. We show that the primal formulation recovers the conventional\n(edge-element) finite element method (FEM) and suggests a geometric foundation\nfor it. On the other hand, the dual formulation suggests a new (dual) type of\nFEM. Although both formulations give identical dynamical physical solutions,\nthe dimensions of the null spaces are different.",
"arxiv_id": "physics/0503013",
"authors": [
"Bo He",
"F. L. Teixeira"
],
"categories": [
"physics.comp-ph",
"physics.class-ph"
],
"doi": "10.1016/j.physleta.2005.09.002",
"title": "Geometric Finite Element Discretization of Maxwell Equations in Primal and Dual Spaces",
"url": "https://arxiv.org/abs/physics/0503013"
},
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