Hello everyone,
I want to use some curved arrows in a picture.
I don't want to use a difference between a torus and a box.
Does everyone have an idea ?
Thank you ,Jens.

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   Jens Neumann                    E-mail : gs34@rz.uni-karlsruhe.de
   Institut fuer Mechanik          
   Universitaet Karlsruhe         
   76128 Karlsruhe 
   Germany                                 
                                      
   Hausanschrift:                      
   Mathematikgebaeude 20.30                   
   Englerstrasse      2                   
   Zimmer             135             
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