On the directional entropy for ℤ²-actions on a Lebesgue space
Tom 133 / 1999
Studia Mathematica 133 (1999), 39-51
DOI: 10.4064/sm-133-1-39-51
Streszczenie
We define the concept of directional entropy for arbitrary $ℤ^2$-actions on a Lebesgue space, we examine its basic properties and consider its behaviour in the class of product actions and rigid actions.
