关键词:微分Riccati方程，双曲型/ petrowski型p . d . eSP - 794185 VL - 1 AB - SN - 1085-3375 UR - https://doi.org/10.1155/S1085337596000243 DO - 10.1155/S1085337596000243 JF -摘要及应用分析