Calculus of Variations and Geometric Measure Theory
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P. Baroni - M. Colombo - G. Mingione

Non-autonomous functionals, borderline cases and related function classes

created by mingione on 29 Oct 2014


Accepted Paper

Inserted: 29 oct 2014
Last Updated: 29 oct 2014

Journal: St. Petersburg Math. J.
Year: 2014

Special issue honoring Nina Uraltseva


We consider a class of non-autonomous functionals characterised by the fact that the energy density changes its ellipticity and growth properties according to the point, and prove some regularity results for related minimisers. These results are the borderline counterpart of analogous ones previously derived for non-autonomous functionals with $(p,q)$-growth. We also discuss similar functionals related to Musielak-Orlicz spaces in which basic properties like density of smooth functions, boundedness of maximal and integral operators, and validity of Sobolev type inequalities naturally relate to the assumptions needed to prove regularity of minima.


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