中国科学院数学与系统科学研究院期刊网
AMS
Explicit fundamental solutions for a class of left invariant operators on the nilpotent lie group G d 1+ d 2
Jiang Yaping , Luo Xuebo
Acta Mathematica Sinica . 1993, (2): 184 -194 .  DOI: 10.1007/BF02560049