Billiard with wall
A billiard table that looks like the one of the computer game
Blobby Volley and whose associated translation surface is such that the set of minimal non uniquely ergodic directions has hausdorff dimension 1/2.
http://math.sfsu.edu/cheung/half.pdf
just a link for the moment, do not hesitate to modify...
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WildSurfaces.BilliardWithWall moved from WildSurfaces.BilliadWithWall on 13 Feb 2006 - 23:49 by ThierryMonteil -
put it back