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arXiv math/0006212math.DGmath.SG
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具有Ricci型曲率的齐次辛流形

Homogeneous symplectic manifolds with Ricci-type curvature

M. Cahen, S. Gutt, J. Horowitz, J. Rawnsley

摘要:

考虑齐次辛流形$(M,ω)$上曲率为Ricci型的不变辛联络$\nabla$.这种联络是Bourgeois和Cahen研究的一个变分问题的解,并且在与辛结构相容的殆复结构丛上提供了一个可积殆复结构。若$M$是紧的,且基本群有限,则$(M,ω)$与$¶_n(\C)$是辛同构的,且$\nabla$与Levi-Civita联络是仿射等价的.

英文摘要:

We consider invariant symplectic connections $\nabla$ on homogeneous symplectic manifolds $(M,ω)$ with curvature of Ricci type. Such connections are solutions of a variational problem studied by Bourgeois and Cahen, and provide an integrable almost complex structure on the bundle of almost complex structures compatible with the symplectic structure. If $M$ is compact with finite fundamental group then $(M,ω)$ is symplectomorphic to $¶_n(\C)$ with a multiple of its Kähler form and $\nabla$ is affinely equivalent to the Levi-Civita connection.

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