Yitwah Cheung
Contact Information
Department of Mathematics, M/C 249
University of Illinois at Chicago
851 South Morgan, 402 SEO
Chicago, IL 60607, USA
Phone: (312) 996-2305
Fax: (312) 996-1491
Email:
yitwah@math.uic.edu
Dissertation
My thesis advisor is
Howard Masur.
In my thesis, I study a one-parameter family of billiard tables
and show that an optimal Hausdorff dimension of 1/2
for set of nonergodic directions is achieved
when the parameter is not a Liouville number.
A revised version of my thesis (June 13) is available in
PostScript.
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Last Updated: June 2, 2000