| 1. | The zero or null matrix denoted by 0 is definde as a matrix all of whose elements are zero .
如果一个矩阵的所有元素都为零，则称它为零矩阵。 |
| 2. | Nilpotent matrix and nilpotent linear transformation
幂零矩阵和幂零线性变换 |
| 3. | The enumeration of equivalence class of 3 - nilpotent matrices
幂零矩阵的相似等价类的计数 |
| 4. | The judgment of the element to be zero in calculating the energy - hamiltonian - matrix in the crystal - field theory
晶体场理论计算能量哈密顿矩阵中为零矩阵元的判别 |
| 5. | This paper first presents the definition of nilpotent matrix and then moves on to discuss certain properties of them
本文先给出幂零矩阵的定义，然后讨论了它的若干性质。 |
| 6. | Its properties are frequently used and discussed in the study of matrix and related mathematical knowledge
我们在研究矩阵及学习有关数学知识时，经常要讨论幂零矩阵的性质。 |
| 7. | In this note we describe explicitly the subalgebras of nilpotent matrices and obtain some interesting results
摘要本文较详细地描述了幂零矩阵子代数，并且获得了一些有趣的结果。 |
| 8. | In this paper , we shall characterize the linear operators that strongly preserve nilpotent matrices and that strongly preserve invertible matrices over boolean algebras and antinegative semirings without zero divisors
本文将刻画在布尔代数和非负无零因子半环上强保持幂零矩阵和可逆矩阵的线性算子 |
| 9. | The astringency , error and stability of the numerical method are researched . zero matrix method , constant matrix method , and jacobian matrix method are constructed in order to improve numerical precision and efficiency . the steps for calculating matrix exponential function using pade approach method are given out
研究了所提西安理工大学博士学位论文数值计算方法的误差、稳定性、收敛性等数学性质，在计算精度和计算效率两方面提出了一些改进措施，构造了零矩阵法、常数矩阵法、雅可比矩阵法等计算格式，给出了利川pade逼近计算矩阵指数函数的求解步骤。 |
