| 1. | The groups of the solvable equations are commutative .
可解方程的群都是交换群。 |
| 2. | It should be clear that vector addition is commutative .
可清楚地看到，矢量加法满足对易律。 |
| 3. | The central notion in commutative algebra is that of a prime ideal .
交换代数中最核心的概念就是素理想。 |
| 4. | Multiplication of permutations, unlike multiplication of numbers, is not always commutative .
置换的乘法不同于数的乘法，它并不一定满足交换律。 |
| 5. | Modules with invariant factors over commutative rings
变换环上具有不变因子的模 |
| 6. | Finitely presented dimensions of commutative gr - coherent rings
有限表现维数 |
| 7. | The commutative of semi - prime ring satisfying condition k
半质环的交换性 |
| 8. | On idempotent and nilpotent matrices over commutative rings
关于交换环上的幂等阵与幂零阵 |
| 9. | Matrix transform operations are not necessarily commutative
矩阵变换操作不必是可交换的。 |
| 10. | Almost convex commutative topoloyical semigroups
几乎凸交换拓扑半群 |
