  In paper [1] S. V. Tikhonov introduced a complete metric on the space of
mixing transformations. It generates a topology called leash-topology. In [2]
Tikhonov states the following problem: for what mixing transformation T its
conjugacy class is dense in the space of mixing transformations with
leash-topology? We show that it is true for every mixing T. As a corollary we
get that generic mixing is rank-1.
