| 1. | On the discreteness spectrum of the j - selfadjoint euler differential operator 微分算子谱的离散性 |
| 2. | A class of reaction - diffusion equations with hysteresis differential operator 微分子算子的反应扩散方程 |
| 3. | Orthogonal coordinate systems ; differential operators of vector analysis 正交坐标系.向量分析的微分算子 |
| 4. | Lie algebra of derivations of algebras of differential operators in n - variables 元微分算子代数的导子李代数 |
| 5. | On self - adjointness of the product of three second - order differential operators 三个二阶微分算子积的自伴性 |
| 6. | The resolvent operator of the 2n - order j - selfadjoint vector differential operator with one endpoint singularity 自伴向量微分算子的预解算子 |
| 7. | The characteristic determinant of the second order singular differential operator in limit - circle case 两端奇异微分算子在极限圆情形下的特征行列式 |
| 8. | The hamiltonian of the system is the driac operator which as a matrix differential operator is not semibounded from below 系统的哈密顿函数是作为矩阵微分算子的狄拉克算子,它不是半有界的。 |
| 9. | So , for some , we can judge whether the linear partial differential operators p ( d ) admit a right inverse according to the boundary condition 由此,对某些n ,可以根据其边界的几何性态来荆断其上的偏徽分算子尸( d )是不存在右逆的 |
| 10. | The standard parabolic equation method was obtained by the decompocition of the scalar wave equation and the expansion of the pseudo - differential operator 通过对传统波动方程的分解和伪微分算子的近似展开,获得了标准抛物线方程。 |