Miki Hirano   Taku Ishii   Takayuki Oda   
MATHEMATICAL PROCEEDINGS OF THE CAMBRIDGE PHILOSOPHICAL SOCIETY 141 15-31 2006年7月 [査読有り]
We discuss a confluence from Siegel-Whittaker functions to Whittaker functions on Sp(2, R) by using their explicit formulae. In our proof, we use expansion theorems of the good Whittaker functions by the secondary Whittaker functions.