数学系 

个人简介 理学博士学位，博士生导师。

研究方向 拓扑学与不确定集理论

科研项目 2022.01-2024.12主持北京市面上项目：处理大数据分类与约化的数学基础理论研究.

代表性科研成果

发表SCI检索的中国科学院分区二区以上论文12篇：

(1) Liwen Ma*，Two fuzzy covering rough set models and their generalizations over fuzzy lattices，Fuzzy Sets and Systems. 294 (2016) 1–17. (SCI，数学大类1区 TOP)

(2) Liwen Ma*, Important matrix computations in finite topological spaces, Applied Mathematics and Computation, 395 (2021)125808. (SCI，数学大类1区 TOP)

(3) Liwen Ma*，Classification of coverings in the finite approximation spaces，Information Sciences，2014，276 (276) 31-41. (SCI，大类 1 区 TOP)

(4) Qiang Gao, Liwen Ma*, A novel notion in rough set theory: Invariant subspaces, Fuzzy Sets and Systems, 440 (2022)  90-111. (SCI，数学大类1区 TOP)

(5) Liwen Ma*，Some twin approximation operators on covering approximation spaces，International Journal of Approximate Reasoning，56（A）(2015) 59-70. (SCI，大类 2 区)

(6) Liwen Ma*，On Some Types of Neighborhood-related Covering rough sets，International Journal of Approximate Reasoning，53（6）(2012)：901-911. (SCI，大类2区)

(7) Liwen Ma*, The investigation of covering rough sets by Boolean matrices, International Journal of Approximate Reasoning 100 (2018) 69–84. (SCI，大类2区)

(8) Liwen Ma*, Hui Lu, Six-Set Approximation Theorem of neighborhood related rough sets, International Journal of Approximate Reasoning 115 (2019) 180–193. (SCI，大类2区)

(9) Xue Wang, Liwen Ma*, Study on covering rough sets with topological methods, CAAI Transactions on Intelligence Technology, (2019) 1-6. (SCI，大类2区)

(10) Liwen Ma*, Couple fuzzy covering rough set models and their generalizations to CCD lattices, International Journal of Approximate Reasoning, 126 (2020) 48-69. (SCI，大类2区)

(11) Liwen Ma*, Characteristic numbers and approximation operators in generalized rough approximation system, International Journal of Approximate Reasoning, 139 (2021) 166–184. (SCI，大类2区)

(12) Huanmin Zhao, Liwen Ma*, Several Rough Set Models in Quotient Spaces, CAAI Transactions on Intelligence Technology, 7(1)  (2022)  69-80.  (SCI，大类2区)

学生培养 主讲数学专业本科生主干课程“数学分析、实变函数、点集拓扑学”等，以及研究生学位课程“系统拓扑学”。

培养研究生7名，毕业生就职于科研院所、银行、高中等。