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Though the A A -quasiconvexity condition has been fully explored since its introduction, no explicit examples of associated variational principles have been considered except in the classical curl curl -case. Our aim is to propose such a family of problems in the div-curl div - curl -situation, and explore the corresponding A A -polyconvexity condition as the main structural assumption to ensure weak lower semicontinuity and existence results.
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Bandeira et al. (2023) studied this question.
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