# zbMATH — the first resource for mathematics

Principe de concentration-compacite en calcul des variations. (French) Zbl 0485.49005

##### MSC:
 49J10 Existence theories for free problems in two or more independent variables 49J45 Methods involving semicontinuity and convergence; relaxation 49K10 Optimality conditions for free problems in two or more independent variables 46E30 Spaces of measurable functions ($$L^p$$-spaces, Orlicz spaces, Köthe function spaces, Lorentz spaces, rearrangement invariant spaces, ideal spaces, etc.) 81Q05 Closed and approximate solutions to the Schrödinger, Dirac, Klein-Gordon and other equations of quantum mechanics 85A30 Hydrodynamic and hydromagnetic problems in astronomy and astrophysics