Differential forms in Carnot groups: a variational approach

Carnot groups (connected simply connected nilpotent stratified Lie groups) can be endowed with a complex of ``intrinsic'' differential forms. In this paper we want to provide an evidence of the intrinsic character of Rumin's complex, in the spirit of the Riemannian approximation, like...

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Main Author: Annalisa Baldi
Format: Article
Language:English
Published: University of Bologna 2011-12-01
Series:Bruno Pini Mathematical Analysis Seminar
Subjects:
Online Access:http://mathematicalanalysis.unibo.it/article/view/2664
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author Annalisa Baldi
author_facet Annalisa Baldi
author_sort Annalisa Baldi
collection DOAJ
description Carnot groups (connected simply connected nilpotent stratified Lie groups) can be endowed with a complex of ``intrinsic'' differential forms. In this paper we want to provide an evidence of the intrinsic character of Rumin's complex, in the spirit of the Riemannian approximation, like in e.g., the notes of Gromov (Textes Mathématiques 1981) and in Rumin (Geom. Funct. Anal.,2000) . More precisely, we want to show that the intrinsic differential is a limit of suitably weighted usual first order de Rham differentials. As an application, we prove that the L^2-energies associated to classical Maxwell's equations in R^n Gamma-converges to the L^2-energies associated to an ''intrinsic'' Maxwell's equation in a free Carnot group.
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spelling doaj.art-64f9d17a72e043819e8b9000ce636d992022-12-22T03:39:29ZengUniversity of BolognaBruno Pini Mathematical Analysis Seminar2240-28292011-12-01212477Differential forms in Carnot groups: a variational approachAnnalisa Baldi0Università di BolognaCarnot groups (connected simply connected nilpotent stratified Lie groups) can be endowed with a complex of ``intrinsic'' differential forms. In this paper we want to provide an evidence of the intrinsic character of Rumin's complex, in the spirit of the Riemannian approximation, like in e.g., the notes of Gromov (Textes Mathématiques 1981) and in Rumin (Geom. Funct. Anal.,2000) . More precisely, we want to show that the intrinsic differential is a limit of suitably weighted usual first order de Rham differentials. As an application, we prove that the L^2-energies associated to classical Maxwell's equations in R^n Gamma-converges to the L^2-energies associated to an ''intrinsic'' Maxwell's equation in a free Carnot group.http://mathematicalanalysis.unibo.it/article/view/2664Carnot groupsdifferential formsgamma-convergence
spellingShingle Annalisa Baldi
Differential forms in Carnot groups: a variational approach
Bruno Pini Mathematical Analysis Seminar
Carnot groups
differential forms
gamma-convergence
title Differential forms in Carnot groups: a variational approach
title_full Differential forms in Carnot groups: a variational approach
title_fullStr Differential forms in Carnot groups: a variational approach
title_full_unstemmed Differential forms in Carnot groups: a variational approach
title_short Differential forms in Carnot groups: a variational approach
title_sort differential forms in carnot groups a variational approach
topic Carnot groups
differential forms
gamma-convergence
url http://mathematicalanalysis.unibo.it/article/view/2664
work_keys_str_mv AT annalisabaldi differentialformsincarnotgroupsavariationalapproach