zelfdoorsneden
Zelfdoorsneden, a Dutch term translating to "self-intersections," refers to a geometric phenomenon where a curve or surface crosses itself. In mathematics, particularly in differential geometry and topology, understanding self-intersections is crucial for classifying and analyzing geometric objects.
For curves, a self-intersection occurs when two distinct points on the curve share the same spatial coordinates.
In three-dimensional space, surfaces can also exhibit self-intersections. A sphere, for instance, is a simple surface
The presence and type of self-intersections can significantly alter the topological properties of a geometric object.