Quantified Legendreness and the regularity of minima

<p>We introduce a new quantification of nonuniform ellipticity in variational problems via convex duality, and prove higher differentiability and 2<em>d</em>-smoothness results for vector valued minimizers of possibly degenerate functionals. Our framework covers convex, anisotropic...

Cur síos iomlán

Sonraí bibleagrafaíochta
Príomhchruthaitheoirí: De Filippis, C, Koch, L, Kristensen, J
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: Springer 2024
Cur síos
Achoimre:<p>We introduce a new quantification of nonuniform ellipticity in variational problems via convex duality, and prove higher differentiability and 2<em>d</em>-smoothness results for vector valued minimizers of possibly degenerate functionals. Our framework covers convex, anisotropic polynomials as prototypical model examples&mdash;in particular, we improve in an essentially optimal fashion Marcellini&rsquo;s original results (Marcellini in Arch Rat Mech Anal 105:267&ndash;284, 1989).</p>