Keywords

#witt_algebra

Witt algebra

Algebra of meromorphic vector fields on the Riemann sphere

In mathematics, the complex Witt algebra, named after Ernst Witt, is the Lie algebra of meromorphic vector fields defined on the Riemann sphere that are holomorphic except at two fixed points. It is also the complexification of the Lie algebra of polynomial vector fields on a circle, and the Lie algebra of derivations of the ring C[z,z−1].

Sat 13th

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Witt algebra Virasoro algebra Lie algebra extension Poincaré–Birkhoff–Witt theorem Witt's theorem Lie group List of things named after Ernst Witt Schwarzian derivative Conformal geometry Witt ring
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