| Chronology | Current Month | Current Thread | Current Date | 
| [Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] | 
If I remember correctly:
An ordinary torus, (the ideal donut), T2 = S1XS1, has a surface that is two
dimensional and the surface has intrinsic curvature.
Is this correct?
Joel R