Hausdorff measure on o-minimal structures
arXiv:1011.1629 · doi:10.2178/jsl/1333566642
Abstract
We introduce the Hausdorff measure for definable sets in an o-minimal structure, and prove the Cauchy-Crofton and co-area formulae for the o-minimal Hausdorff measure. We also prove that every definable set can be partitioned into "basic rectifiable sets", and that the Whitney arc property holds for basic rectifiable sets.
22 pages