< KXYZ modulo XY-Z^n < Monoidring
Beschreibe
![{\displaystyle K[X,Y,Z]/(XY-Z^{n})}](../../../I/4290912e3bc36fe2a4e3b72e410daf77ea6b70ff.svg)
als Monoidring und als neutrale Stufe eines Polynomrings in einer geeigneten
Graduierung.
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