Journal
JOURNAL OF CONVEX ANALYSIS
Volume 28, Issue 2, Pages 457-470Publisher
HELDERMANN VERLAG
Keywords
Free-discontinuity problems; functions of bounded deformation; Griffith's energy
Categories
Funding
- INI [EP/R014604/1]
- DFG project [FR 4083/1-1]
- Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) [EXC 2044-390685587]
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This study provides an extension result for generalised special functions of bounded deformation and shows that a function in GSBD(p) with a small jump set coincides with a W-1,W-p function, up to a small set whose perimeter and volume are controlled by the size of the jump of the function.
We show an extension result for generalised special functions of bounded deformation (GSBD(p), for every p > 1) and any dimension n >= 2. The proof is based on a recent result of F. Cagnetti, A. Chambolle, and L. Scardia, where it is shown that a function u in GSBD(p) with a small jump set coincides with a W-1,W-p function, up to a small set whose perimeter and volume are controlled by the size of the jump of u.
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