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arXiv quant-ph/0409118quant-phmath-phmath.DGmath.MP
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复型非紧对称空间的Segal-Bargmann变换

The Segal-Bargmann transform for noncompact symmetric spaces of the complex type

Brian C. Hall, Jeffrey J. Mitchell

摘要:

我们考虑广义Segal-Bargmann变换,定义的热算子,为非紧对称空间的复杂型。对于径向函数,我们证明了Segal-Bargmann变换是到某个亚纯函数的L^2空间上的酉映射。对于一般函数,我们给出了一个反演公式的Segal-Bargmann变换,涉及集成对一个“展开”版本的热核的对偶紧对称空间。这两个结果都涉及到奇异点的精细消去。

英文摘要:

We consider the generalized Segal-Bargmann transform, defined in terms of the heat operator, for a noncompact symmetric space of the complex type. For radial functions, we show that the Segal-Bargmann transform is a unitary map onto a certain L^2 space of meromorphic functions. For general functions, we give an inversion formula for the Segal-Bargmann transform, involving integration against an "unwrapped" version of the heat kernel for the dual compact symmetric space. Both results involve delicate cancellations of singularities.

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