שיחה:גופי סיבוב של חתכי חרוט – הבדלי גרסאות

 

The name is completely unjustified. These are quadratic two-dimensional manifolds, and a jokingly given nick name should not be used as a title. Each one of those manifolds desrves its own article, and the classification can be discussed under the analytic part of "quadratic forms".