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Applications de la méthode de concentration-compacité à l’existence de fonctions extrémales. (French) Zbl 0522.49008


MSC:

49J45 Methods involving semicontinuity and convergence; relaxation
46A50 Compactness in topological linear spaces; angelic spaces, etc.
46E35 Sobolev spaces and other spaces of “smooth” functions, embedding theorems, trace theorems
39B72 Systems of functional equations and inequalities
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