Abstract
We find all intrinsic measures of $C^{1,1}$ smooth submanifolds in the Engel group, showing that they are equivalent to the corresponding $d$-dimensional spherical Hausdorff measure restricted to the submanifold. The integer $d$ is the degree of the submanifold. These results follow from a different approach to negligibility, based on a blow-up technique.
Citation
Enrico Le Donne . Valentino Magnani . "Measure of submanifolds in the Engel group." Rev. Mat. Iberoamericana 26 (1) 333 - 346, March, 2010.
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