Voit, Michael2013-10-172013-10-172013-10-17http://hdl.handle.net/2003/3112910.17877/DE290R-10958enGrassmann manifoldsHaar measureHeckman-Opdam theoryhypergeometric functions associated with root systemshypergroupsproduct formulassigned hypergroupsspherical functions610Product formulas for a two-parameter family of Heckman-Opdam hypergeometric functions of type BCpreprint