  The Hua-Radon and polarized Hua-Radon transform are two orthogonal
projections defined on holomorphic functions in the Lie sphere. Both
transformations can be written as integral transforms with respect to a
suitable reproducing kernel. Integrating both kernels over a Stiefel manifold
yields a linear combination of zonal spherical monogenics. Using an Almansi
type decomposition of holomorphic functions and reproducing properties of the
zonal monogenics, we obtain an inversion formula for both the Hua-Radon and the
polarized Hua-Radon transform.
