中国科学院数学与系统科学研究院期刊网
AMS
Existence and Regularity of Solution to the Generalized Tricomi Equation with a Singular Initial Datum at a Point
Kang Qun ZHANG
Acta Mathematica Sinica . 2012, (6): 1135 -1154 .  DOI: 10.1007/s10114-011-0487-8