<span>On the Initial Value Problem and Fundamental Solution for a Class of Homogeneous Left Invariant Differential Operators on the Heisenberg Group</span>

牛鹏程, 关驻军

On the Initial Value Problem and Fundamental Solution for a Class of Homogeneous Left Invariant Differential Operators on the Heisenberg Group

Niu Pengcheng, Zheng Zhujun

数学季刊 . 1994, (3): 6 -12 .