A new proof of semicontinuity by Young measures and an approximation theorem in Orlicz-Sobolev spaces

[摘要] We give a new approach to studythe lower semicontinuity properties of nonautonomous variational integrals whose energy densities satisfy general growth conditions. We apply the theory of Young measures and properties of Orlicz-Sobolev spaces to prove semicontinuity result.

[学科分类] 数学（综合）