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Higher integrability of the gradient and dimension of the singular set for minimisers of the Mumford-Shah functional

Ambrosio, L; Fusco, N; Hutchinson, John


The paper is concerned with the higher regularity properties of the minimizers of the Mumford-Shah functional. It is shown that, near to singular points where the scaled Dirichlet integral tends to 0, the discontinuity set is close to an Almgren area minimizing set. As a byproduct, the set of singular points of this type has Hausdorff dimension at most N - 2, N being the dimension of the ambient space. Assuming higher integrability of the gradient this leads to an optimal estimate of the...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
Source: Calculus of Variations and Partial Differential Equations
DOI: 10.1007/s005260100148


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