1. Hilbert spaces of eigenfunctions of the Laplacian;Fujita,1999
2. On the double series expansion with harmonic components;Fujita,2000
3. Entire eigenfunctions of the Laplacian of exponential type with respect to the Lie norm and the dual Lie norm;Fujita;Acta Math. Vietnam.,2001
4. Holomorphic functions on the dual Lie ball;Fujita,2000
5. Y. Iwahara, Entire functions of exponential type related to the Lie ball, Master's thesis, Sophia University (1998)