关于二阶线性复微分方程解的Borel方向
魏文龙, 黄志刚
Borel directions of solutions of a second order linear complex differential equation
WEI Wen-long, HUANG Zhi-gang
华东师范大学学报(自然科学版) . 2019, (2): 49 -55 .  DOI: 10.3969/j.issn.1000-5641.2019.02.005