Inserted: 20 dec 2002
Last Updated: 29 nov 2003
Journal: Publ. Mat.
We compare the Hausdorff measures and dimensions with respect to the Euclidean and Heisenberg metrics on the first Heisenberg group. The result is a dimension jump described by two inequalities. The sharpness of our estimates is shown by examples. Moreover a comparison between Euclidean and $\H$-rectifiability is giv
Keywords: Hausdorff measures, Heisenberg group, Eucildean and $H$- rectifiability