Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4667973 | Advances in Mathematics | 2007 | 16 Pages |
Abstract
We study the heat equation associated to a multiplicity function on a root system, where the corresponding Laplace operator has been defined by Heckman and Opdam. In particular, we describe the image of the associated Segal–Bargmann transform as a space of holomorphic functions. In the case where the multiplicity function corresponds to a Riemannian symmetric space G/K of non-compact type, we obtain a description of the image of the space of K-invariant L2-function on G/K under the Segal–Bargmann transform associated to the heat equation on G/K, thus generalizing (and reproving) a result of B. Hall and J. Mitchell for spaces of complex type.
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Mathematics (General)