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A new type of functional in the calculus of variations. (Italian. English summary) Zbl 0715.49014
Summary: We study a class of functionals which occur in many problems of mathematical physics and, in particular, in the problem of finding the equilibrium configurations of a mixture of isotropic liquids and liquid crystals.

MSC:
49J45 Methods involving semicontinuity and convergence; relaxation
49S05 Variational principles of physics
49J10 Existence theories for free problems in two or more independent variables
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