Cover of Dirk Kussin: Noncommutative Curves of Genus Zero

Dirk Kussin Noncommutative Curves of Genus Zero

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American Mathematical Society

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128

978-1-4704-0556-4

1-4704-0556-3

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In these notes the author investigates noncommutative smooth projective curves of genus zero, also called exceptional curves. As a main result he shows that each such curve $\mathbb{X}$ admits, up to some weighting, a projective coordinate algebra which is a not necessarily commutative graded factorial domain$R$ in the sense of Chatters and Jordan. Moreover, there is a natural bijection between the points of $\mathbb{X}$ and the homogeneous prime ideals of height one in $R$, and these prime ideals are principal in a strong sense.

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