Date: 21 Oct 2006

Direct approach to the problem of strong local minima in calculus of variations

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Abstract

The paper introduces a general strategy for identifying strong local minimizers of variational functionals. It is based on the idea that any variation of the integral functional can be evaluated directly in terms of the appropriate parameterized measures. We demonstrate our approach on a problem of W 1,∞ sequential weak-* local minima — a slight weakening of the classical notion of strong local minima. We obtain the first quasiconvexity-based set of sufficient conditions for W 1,∞ sequential weak-* local minima.

An erratum to this article can be found at http://dx.doi.org/10.1007/s00526-007-0157-y