Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems

We consider quasilinear elliptic systems in divergence form. In general, we cannot expect that weak solutions are locally bounded because of De Giorgi’s counterexample. Here we assume that off-diagonal coefficients have a “butterfly support”: this allows us to prove local boundedness of weak solutio...

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Main Authors: Leonardi Salvatore, Leonetti Francesco, Rocha Eugenio, Staicu Vasile
Format: Article
Language:English
Published: De Gruyter 2021-11-01
Series:Advances in Nonlinear Analysis
Subjects:
Online Access:https://doi.org/10.1515/anona-2021-0205
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author Leonardi Salvatore
Leonetti Francesco
Rocha Eugenio
Staicu Vasile
author_facet Leonardi Salvatore
Leonetti Francesco
Rocha Eugenio
Staicu Vasile
author_sort Leonardi Salvatore
collection DOAJ
description We consider quasilinear elliptic systems in divergence form. In general, we cannot expect that weak solutions are locally bounded because of De Giorgi’s counterexample. Here we assume that off-diagonal coefficients have a “butterfly support”: this allows us to prove local boundedness of weak solutions.
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spelling doaj.art-9337ef6d8c9549ecb292083ac007b37f2022-12-22T04:21:24ZengDe GruyterAdvances in Nonlinear Analysis2191-94962191-950X2021-11-0111167268310.1515/anona-2021-0205Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systemsLeonardi Salvatore0Leonetti Francesco1Rocha Eugenio2Staicu Vasile3Department of Mathematics and Informatics, University of Catania, Viale A. Doria 6, 95125Catania, ItalyDISIM - Department of Information Engineering, Computer Science and Mathematics, University of L’Aquila, Via Vetoio snc - Coppito, 67100, L’Aquila, ItalyCenter for Research and Development in Mathematics and Applications, Department of Mathematics, University of Aveiro, 3810-193, Aveiro, PortugalCenter for Research and Development in Mathematics and Applications, Department of Mathematics, University of Aveiro, 3810-193, Aveiro, PortugalWe consider quasilinear elliptic systems in divergence form. In general, we cannot expect that weak solutions are locally bounded because of De Giorgi’s counterexample. Here we assume that off-diagonal coefficients have a “butterfly support”: this allows us to prove local boundedness of weak solutions.https://doi.org/10.1515/anona-2021-0205quasilinearellipticsystemweaksolutionregularityprimary: 35j47secondary: 35b6549n60
spellingShingle Leonardi Salvatore
Leonetti Francesco
Rocha Eugenio
Staicu Vasile
Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems
Advances in Nonlinear Analysis
quasilinear
elliptic
system
weak
solution
regularity
primary: 35j47
secondary: 35b65
49n60
title Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems
title_full Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems
title_fullStr Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems
title_full_unstemmed Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems
title_short Butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems
title_sort butterfly support for off diagonal coefficients and boundedness of solutions to quasilinear elliptic systems
topic quasilinear
elliptic
system
weak
solution
regularity
primary: 35j47
secondary: 35b65
49n60
url https://doi.org/10.1515/anona-2021-0205
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AT leonettifrancesco butterflysupportforoffdiagonalcoefficientsandboundednessofsolutionstoquasilinearellipticsystems
AT rochaeugenio butterflysupportforoffdiagonalcoefficientsandboundednessofsolutionstoquasilinearellipticsystems
AT staicuvasile butterflysupportforoffdiagonalcoefficientsandboundednessofsolutionstoquasilinearellipticsystems