This is a picture of a torus knot on a torus.
 
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Exercises in Ring Theory  

Prof. Dr. Zekeriya Arvasi
University of Osmangazi
Department of Mathematics and Computer Sciences
Faculty of Science & Art
26480, Eskižehir
TURKEY
Phone : ++90 (222) 2290433/ext:2231
Fax : ++90 (222) 2393578
E-Mail : zarvasi@ogu.edu.tr

© 2005