Statements (15)
Predicate | Object |
---|---|
gptkbp:instanceOf |
surface
ruled surface singular surface |
gptkbp:canBeEmbeddedIn |
3-dimensional space
|
gptkbp:dimensions |
2
|
gptkbp:hasEquation |
z = x y^2
|
gptkbp:hasParametricEquation |
(u, v, u v^2)
|
gptkbp:hasSelfIntersection |
yes
|
gptkbp:hasSingularityType |
pinch point
|
https://www.w3.org/2000/01/rdf-schema#label |
Whitney umbrella
|
gptkbp:namedAfter |
gptkb:Hassler_Whitney
|
gptkbp:studiedIn |
differential topology
singularity theory |
gptkbp:bfsParent |
gptkb:Hassler_Whitney
|
gptkbp:bfsLayer |
5
|