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arXiv 0810.5256math.CV
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Ramadanov猜想与紧Hermite对称空间上的线丛

Ramadanov conjecture and line bundles over compact Hermitian symmetric spaces

M. Englis, G. K. Zhang

摘要:

本文计算了紧致Hermitian对称空间上齐次负线丛的单位圆丛的Szegö核。我们证明了它们的对数项在所有情况下都为零,并且进一步证明了对于高阶Grassmannian流形,圆丛不同构于$\CC^n$中的单位球。特别是他们提供了一个无限家庭的光滑有界的严格伪凸区域的复流形的对数项在February man展开的Szegö内核消失,这是不同胚的领域。对于Bergman核也得到了类似的结果。

英文摘要:

We compute the Szegö kernels of the unit circle bundles of homogeneous negative line bundles over a compact Hermitian symmetric space. We prove that their logarithmic terms vanish in all cases and, further, that the circle bundles are not diffeomorphic to the unit sphere in $\CC^n$ for Grassmannian manifolds of higher ranks. In particular they provide an infinite family of smoothly bounded strictly pseudo-convex domains on complex manifolds for which the log terms in the Fefferman expansion of the Szegö kernel vanish and which are not diffeomorphic to the sphere. The analogous results for the Bergman kernel are also obtained.

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