Serre, D. Formes quadratiques et calcul des variations. (French) Zbl 0529.49005 J. Math. Pures Appl., IX. Sér. 62, 177-196 (1983). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 14 Documents MSC: 49J45 Methods involving semicontinuity and convergence; relaxation 46A55 Convex sets in topological linear spaces; Choquet theory 54C08 Weak and generalized continuity 26B25 Convexity of real functions of several variables, generalizations 49J20 Existence theories for optimal control problems involving partial differential equations 46A50 Compactness in topological linear spaces; angelic spaces, etc. 49J27 Existence theories for problems in abstract spaces Keywords:lower semicontinuity of integral functionals; quadratic forms; quasi- convexity; poly-convexity; Legendre-Hadamard condition; compensated compactness PDF BibTeX XML Cite \textit{D. Serre}, J. Math. Pures Appl. (9) 62, 177--196 (1983; Zbl 0529.49005) OpenURL