An example of a regular Cantor set whose difference set is a Cantor set with positive measure
We give an example of a regular Cantor set whose self-difference set is a Cantor set and, at the same time, has a positive measure. This is a counter-example of one of the questions posed by J. Palis related to homoclinic bifurcation of surface diffeomorphisms.
scientific article; zbMATH DE number 55916