We give natural extensions for the α-Rosen continued fractions of Dajani et al. for a set of small α values by appropriately adding and deleting rectangles from the region of the natural extension for the standard Rosen fractions. It follows that the underlying maps have equal entropy.
@article{1273236716,
author = {KRAAIKAMP, Cornelis and SCHMIDT, Thomas A. and SMEETS, Ionica},
title = {Natural extensions for $\alpha$-Rosen continued fractions},
journal = {J. Math. Soc. Japan},
volume = {62},
number = {1},
year = {2010},
pages = { 649-671},
language = {en},
url = {http://dml.mathdoc.fr/item/1273236716}
}
KRAAIKAMP, Cornelis; SCHMIDT, Thomas A.; SMEETS, Ionica. Natural extensions for α-Rosen continued fractions. J. Math. Soc. Japan, Tome 62 (2010) no. 1, pp. 649-671. http://gdmltest.u-ga.fr/item/1273236716/