We prove the existence of second weak derivatives for bounded minimizers u: This allows us to improve on the Hausdorff dimension of the singular set of u.
Higher differentiability for minimizers of irregular integrals
β Scribed by L. Esposito; F. Leonetti; G. Mingione
- Publisher
- Elsevier Science
- Year
- 2001
- Tongue
- English
- Weight
- 370 KB
- Volume
- 47
- Category
- Article
- ISSN
- 0362-546X
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β¦ Synopsis
We report on some higher differentiability theorems valid for minimizers of integral functionals (\int_{\Omega} f(D u) d x), with non standard growth conditions of ((p, q)) type. The main feature of our results is that the only regularity assumption made on (f) is a suitable form of uniform convexity.
π SIMILAR VOLUMES
We prove higher integrability for minimizers u : 0 Γ R N of integral functionals 0 ( f (Du)+a(x) u) dx, where f satisfies a non standard growth condition of ( p, q) type, |z| p f (z) L(1+|z| q ), p<q.
## Existence of AC minimizers under the general hypotheses of lower semicontinuity, boundedness below, and superlinear growth at inΓΏnity in x (β’). Any nonconvex function h : R β [0; + β] will do, provided it is convex at = 0. Moreover, minimizers are shown to satisfy several regularity properties
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