| 1. | One sufficient and necessary conditions of scalar matrix 纯量矩阵的一个充要条件 |
| 2. | Some sufficient and necessary conditions of - nilpotent group 幂零群的几个充要条件 |
| 3. | Sufficient and necessary conditions for solvable finite group 关于有限群可解的充要条件 |
| 4. | Two sufficient and necessary conditions of solvable finite groups 有限群可解的两个充要条件 |
| 5. | Sufficient and necessary conditions of multiplicative convex functions 积性凸函数的充分必要条件 |
| 6. | Sufficient and necessary conditions for a finite group to be solvable 有限群可解的若干充分必要条件 |
| 7. | Sufficient and necessary condition about extremum of multi - varible function 多元函数极值存在的充要条件 |
| 8. | Some sufficient and necessary conditions for a finite group to be supersolvable 有限超可解群的若干充要条件 |
| 9. | Sufficient and necessary conditions for stochastic comparability of jump processes 跳过程随机可比的充要条件 |
| 10. | The sufficient and necessary conditions of the uniformity of reciprocal matrices 正互反矩阵一致性的充要条件 |