Abstract
The self intersection of an immersion i: S2 → ℝ dissects S 2 into pieces which are planar surfaces (unless i is an embedding). In this work we determine what collections of planar surfaces may be obtained in this way. In particular, for every n we construct an immersion i: S2 → ℝ with 2n triple points, for which all pieces are discs.
Original language | English |
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Pages (from-to) | 37-41 |
Number of pages | 5 |
Journal | Geometriae Dedicata |
Volume | 127 |
Issue number | 1 |
State | Published - Jun 2007 |
Keywords
- Immersions of the 2-sphere