
handle: 11568/92410
Starting from the Golab Theorem, which states that in a metric space \((Q,d)\) the Hausdorff measure \({\mathcal H}^1_d\), when restricted to the class of the compact connected subsets of \(Q\), is lower semicontinuous for the Hausdorff distance between sets, it is shown that actually a more general result holds for the \(\Gamma\)-convergence of sequences of Hausdorff measures \(\{{\mathcal H}^1_{d_j}\}\), each one depending on a proper metric \(d_j\), with respect to the uniform convergence of \(\{d_j\}\) on \(Q\times Q\). In particular, it is proved that the \(\Gamma\)-convergence of \({\mathcal H}^1_{d_j}\) to \({\mathcal H}^1_d\) is equivalent to the uniform convergence on \(Q\times Q\) of \(\{d_j\}\) to the metric \(d\). Some results are obtained in the larger framework of semi-distances, where some interesting facts occur. Examples and open problems are presented as well, mainly dealing with the homogenization of distance functions.
Hausdorff and packing measures, Methods involving semicontinuity and convergence; relaxation, Variational problems in a geometric measure-theoretic setting, Golab theorem, \(\Gamma\)-convergence, Hausdorff measures
Hausdorff and packing measures, Methods involving semicontinuity and convergence; relaxation, Variational problems in a geometric measure-theoretic setting, Golab theorem, \(\Gamma\)-convergence, Hausdorff measures
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