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| $3\times 3$阶上三角算子矩阵的四类点谱扰动 |
| 吴秀峰1, 黄俊杰1, 阿拉坦仓2 |
1. 内蒙古大学 数学科学学院, 内蒙古呼和浩特 010021
2. 呼和浩特民族学院 数学系, 内蒙古呼和浩特 010051 |
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| Pertubation of four classes of point spectra for $3\times3$ upper triangular operator matrices |
| WU Xiu-feng1, HUANG Jun-jie1, Alatancang2 |
1. School of Math. Sci., Inner Mongolia Univ., Hohhot 010021, China
2. Dept. of Math. Sci., Hohhot Minzu College., Hohhot 010051, China |
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