Lower semicontinuity in BV of quasiconvex integrals with subquadratic growth
ESAIM: Control, Optimisation and Calculus of Variations, Volume 19 (2013) no. 2, pp. 555-573.

A lower semicontinuity result in BV is obtained for quasiconvex integrals with subquadratic growth. The key steps in this proof involve obtaining boundedness properties for an extension operator, and a precise blow-up technique that uses fine properties of Sobolev maps. A similar result is obtained by Kristensen in [Calc. Var. Partial Differ. Equ. 7 (1998) 249-261], where there are weaker asssumptions on convergence but the integral needs to satisfy a stronger growth condition.

DOI: 10.1051/cocv/2012021
Classification: 49J45
Keywords: lower semicontinuity, quasiconvex integrals, functions of bounded variation
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     title = {Lower semicontinuity in {BV} of quasiconvex integrals with subquadratic growth},
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Soneji, Parth. Lower semicontinuity in BV of quasiconvex integrals with subquadratic growth. ESAIM: Control, Optimisation and Calculus of Variations, Volume 19 (2013) no. 2, pp. 555-573. doi : 10.1051/cocv/2012021. http://archive.numdam.org/articles/10.1051/cocv/2012021/

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