Standard cone/Derivations/Not unitary/Exercise
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Describe the derivations on
K
[
X
,
Y
,
Z
]
/
(
Z
2
−
X
2
−
Y
2
)
{\displaystyle {}K[X,Y,Z]/(Z^{2}-X^{2}-Y^{2})}
and show that there are no unitary derivations on it.
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Category
:
Mathematical exercise
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![{\displaystyle {}K[X,Y,Z]/(Z^{2}-X^{2}-Y^{2})}](https://wikimedia.org/api/rest_v1/media/math/render/svg/3bd91abcb939570e3785c41cf0b44f2a928e7d1e)
and show that there are no unitary derivations on it.