polyconvexity en · NOUN
Etymology
From poly- + convexity.
Meanings
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(uncountable) A generalization of the notion of convexity for functions defined on spaces of matrices.
Thus we negatively answer Morrey's conjecture in the subclass of isochoric nonlinear energies, since polyconvexity implies quasiconvexity.
2015, Robert J. Martin, Ionel-Dumitrel Ghiba, Patrizio Neff, “Rank-one convexity implies polyconvexity for isotropic, objective and isochoric elastic energies in the two-dimensional case”, in (Please provide the book title or journal name):