XPost: sci.math   
   From: ivgroups@onlinehome.de   
      
   "IV" wrote in news:mshbmg$usi$1@news.albasani.net...   
      
   My questions are still unanswered. Could someone here please help me? I   
   assume that are simple questions which can easily be answered by   
   mathematicians.   
      
   Thank you very much in advance.   
      
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