Problem 133

Primary tabs

$C^ \infty $ diffeo of the 2-disk preserving a smooth measure $\mu $ with $h_\mu >0$? An ergodic example?

Comments

He also asks about entropy of Hamiltonian system in Arnold-Avez

See Katok, A. Bernoulli diffeomorphisms on surfaces. Ann. of Math. (2) 110 (1979), no. 3, 529--547.

Add a new comment

Log in or register to post comments