Calculus of Variations and Geometric Measure Theory

G. Dal Maso - D. Donati

$Γ$-convergence and homogenisation for free discontinuity functionals with linear growth in the space of functions with bounded deformation

created by donati on 28 Jan 2026

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Submitted Paper

Inserted: 28 jan 2026
Last Updated: 28 jan 2026

Year: 2026

ArXiv: 2601.19591 PDF

Abstract:

We study the $Γ$-convergence of sequences of free discontinuity functionals with linear growth defined in the space ${\rm BD}$ of functions with bounded deformation. We prove a compactness result with respect to $Γ$-convergence and outline the main properties of the $Γ$-limits, which lead to an integral representation result. The corresponding integrands are obtained by taking limits of suitable minimisation problems on small cubes. These results are then used to study the deterministic and stochastic homogenisation problem for a large class of free discontinuity functionals defined in ${\rm BD}$.