Finde zu R = K [ X , Y , Z ] / ( X Y − Z n ) {\displaystyle {}R=K[X,Y,Z]/{\left(XY-Z^{n}\right)}} auf U = D ( X , Z ) ⊆ Spek ( R ) {\displaystyle {}U=D(X,Z)\subseteq \operatorname {Spek} {\left(R\right)}} definierte rationale Funktionen,
![{\displaystyle {}R=K[X,Y,Z]/{\left(XY-Z^{n}\right)}}](https://wikimedia.org/api/rest_v1/media/math/render/svg/5cfcab0834dc6df6920520622c156971cc093eef)
