Witt's theorem for noncommutative conics
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noncommutativecurvesgenushomogeneoustheoremwittzeroallowing
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Let k be a field. We show that all homogeneous noncommutative curves of genus zero over k are noncommutative P^1-bundles over a (possibly) noncommutative base. Using this result, we compute complete isomorphism invariants of homogeneous noncommutative curves of genus zero, allowing us to generalize a theorem of Witt.
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