Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension

We prove higher summability for the gradient of minimizers of strongly convex integral functionals of the Calculus of Variations ˆ Ω f(x, Du(x)) dx, u : Ω ⊂ R n → S N−1 , with growth conditions of (p, q)-type: |ξ| p ≤ f(x, ξ) ≤ C(|ξ| q + 1), p < q, in low dimension. Our procedure is set in th...

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Main Author: De Filippis, C
Format: Journal article
Language:English
Published: Elsevier 2018
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author De Filippis, C
author_facet De Filippis, C
author_sort De Filippis, C
collection OXFORD
description We prove higher summability for the gradient of minimizers of strongly convex integral functionals of the Calculus of Variations ˆ Ω f(x, Du(x)) dx, u : Ω ⊂ R n → S N−1 , with growth conditions of (p, q)-type: |ξ| p ≤ f(x, ξ) ≤ C(|ξ| q + 1), p < q, in low dimension. Our procedure is set in the framework of Fractional Sobolev Spaces and renders the desired regularity as the result of an approximation technique relying on estimates obtained through a careful use of difference quotients.
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spelling oxford-uuid:368246ff-63f0-434e-bc3c-bae64ec3686c2022-03-26T13:38:23ZHigher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimensionJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:368246ff-63f0-434e-bc3c-bae64ec3686cEnglishSymplectic Elements at OxfordElsevier2018De Filippis, CWe prove higher summability for the gradient of minimizers of strongly convex integral functionals of the Calculus of Variations ˆ Ω f(x, Du(x)) dx, u : Ω ⊂ R n → S N−1 , with growth conditions of (p, q)-type: |ξ| p ≤ f(x, ξ) ≤ C(|ξ| q + 1), p < q, in low dimension. Our procedure is set in the framework of Fractional Sobolev Spaces and renders the desired regularity as the result of an approximation technique relying on estimates obtained through a careful use of difference quotients.
spellingShingle De Filippis, C
Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension
title Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension
title_full Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension
title_fullStr Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension
title_full_unstemmed Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension
title_short Higher integrability for constrained minimizers of integral functionals with (p, q)-growth in low dimension
title_sort higher integrability for constrained minimizers of integral functionals with p q growth in low dimension
work_keys_str_mv AT defilippisc higherintegrabilityforconstrainedminimizersofintegralfunctionalswithpqgrowthinlowdimension