Topological and metric entropy pairs of ℤ²-actions are defined and their properties are investigated, analogously to ℤ-actions. In particular, mixing properties are studied in connection with entropy pairs.
@article{bwmeta1.element.bwnjournal-article-doi-10_4064-sm165-3-4, author = {Kyewon Koh Park and Uijung Lee}, title = {Entropy pairs of $\mathbb{Z}$$^2$ and their directional properties}, journal = {Studia Mathematica}, volume = {162}, year = {2004}, pages = {255-274}, zbl = {1057.37004}, language = {en}, url = {http://dml.mathdoc.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm165-3-4} }
Kyewon Koh Park; Uijung Lee. Entropy pairs of ℤ² and their directional properties. Studia Mathematica, Tome 162 (2004) pp. 255-274. http://gdmltest.u-ga.fr/item/bwmeta1.element.bwnjournal-article-doi-10_4064-sm165-3-4/