On the Tree Gauge in Magnetostatics

We recall the classical tree-cotree technique in magnetostatics. (1) We extend it in the frame of high-order finite elements in general domains. (2) We focus on its connection with the question of the invertibility of the final algebraic system arising from a high-order edge finite element discretiz...

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Main Authors: Francesca Rapetti, Ana Alonso Rodríguez, Eduardo De Los Santos
Format: Article
Language:English
Published: MDPI AG 2022-01-01
Series:J
Subjects:
Online Access:https://www.mdpi.com/2571-8800/5/1/4
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author Francesca Rapetti
Ana Alonso Rodríguez
Eduardo De Los Santos
author_facet Francesca Rapetti
Ana Alonso Rodríguez
Eduardo De Los Santos
author_sort Francesca Rapetti
collection DOAJ
description We recall the classical tree-cotree technique in magnetostatics. (1) We extend it in the frame of high-order finite elements in general domains. (2) We focus on its connection with the question of the invertibility of the final algebraic system arising from a high-order edge finite element discretization of the magnetostatic problem formulated in terms of the magnetic vector potential. With the same purpose of invertibility, we analyse another classically used condition, the Coulomb gauge. (3) We conclude by underlying that the two gauges can be naturally considered in a high order framework without any restriction on the topology of the domain.
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spelling doaj.art-4c7aadc8ae9e476abe5d2c4999b01e322023-11-24T01:45:38ZengMDPI AGJ2571-88002022-01-0151526310.3390/j5010004On the Tree Gauge in MagnetostaticsFrancesca Rapetti0Ana Alonso Rodríguez1Eduardo De Los Santos2Laboratoire Mathématiques & Interactions, Université Côte d’Azur, Parc Valrose, F-06108 Nice, FranceDipartimento di Matematica, Università degli Studi di Trento, Via Sommarive 14, Povo, I-38123 Trento, ItalyDipartimento di Matematica, Università degli Studi di Trento, Via Sommarive 14, Povo, I-38123 Trento, ItalyWe recall the classical tree-cotree technique in magnetostatics. (1) We extend it in the frame of high-order finite elements in general domains. (2) We focus on its connection with the question of the invertibility of the final algebraic system arising from a high-order edge finite element discretization of the magnetostatic problem formulated in terms of the magnetic vector potential. With the same purpose of invertibility, we analyse another classically used condition, the Coulomb gauge. (3) We conclude by underlying that the two gauges can be naturally considered in a high order framework without any restriction on the topology of the domain.https://www.mdpi.com/2571-8800/5/1/4magnetic vector potentialhigh order edge finite elementstree gaugeCoulomb gauge
spellingShingle Francesca Rapetti
Ana Alonso Rodríguez
Eduardo De Los Santos
On the Tree Gauge in Magnetostatics
J
magnetic vector potential
high order edge finite elements
tree gauge
Coulomb gauge
title On the Tree Gauge in Magnetostatics
title_full On the Tree Gauge in Magnetostatics
title_fullStr On the Tree Gauge in Magnetostatics
title_full_unstemmed On the Tree Gauge in Magnetostatics
title_short On the Tree Gauge in Magnetostatics
title_sort on the tree gauge in magnetostatics
topic magnetic vector potential
high order edge finite elements
tree gauge
Coulomb gauge
url https://www.mdpi.com/2571-8800/5/1/4
work_keys_str_mv AT francescarapetti onthetreegaugeinmagnetostatics
AT anaalonsorodriguez onthetreegaugeinmagnetostatics
AT eduardodelossantos onthetreegaugeinmagnetostatics