不同覆盖产生相同覆盖近似集的条件研究

汤建国1,汪江桦1,佘堃2,祝峰3

On conditions for the same covering approximation sets induced by different coverings

Tang Jianguo1, Wang Jianghua1, She Kun2, William Zhu3

南京大学学报(自然科学版) . 2014, (1): 72 .