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- W2964175345 abstract "Let M be a real analytic Riemannian manifold. An adapted complex structure on TM is a complex structure on a neighborhood of the zero section such that the leaves of the Riemann foliation are complex submanifolds. This structure is called entire if it may be extended to the whole of TM. We call such manifolds Grauert tubes, or simply tubes. We consider here the case of M = G a compact connected Lie group with a left-invariant metric, and try to determine for which such metrics the associated tube is entire. It is well-known that the Grauert tube of a bi-invariant metric on a Lie group is entire. The case of the smallest group SU(2) is treated completely, thanks to the complete integrability of the geodesic flow for such a metric, a standard result in classical mechanics. Along the way we find a new obstruction to tubes being entire which is made visible by the complete integrability. (New reference and exposition shortened, 11/17/2017.)" @default.
- W2964175345 created "2019-07-30" @default.
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- W2964175345 date "2018-02-14" @default.
- W2964175345 modified "2023-10-17" @default.
- W2964175345 title "Left-invariant grauert tubes on SU(2)" @default.
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- W2964175345 doi "https://doi.org/10.1093/qmath/hay002" @default.
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