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Integral estimates for null Lagrangians. (English) Zbl 0793.58002
Author’s abstract: “Sobolev spaces of differential forms are studied. L p -projections onto exact forms are introduced as a tool to obtain integral estimates for null Lagrangians. New results on compensated compactness are given and mean-coercive variational integrals are found”.

MSC:
58A10Differential forms (global analysis)
46E35Sobolev spaces and other spaces of “smooth” functions, embedding theorems, trace theorems
58E15Applications of variational methods to extremal problems in several variables; Yang-Mills functionals
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