李恆哲

李恆哲，男，1982年4月生，博士，河南師範大學數學與信息科學學院副教授。

基本介紹

• 中文名：李恆哲
• 畢業院校：南開大學
• 學位/學歷：博士
• 職業：教師
• 專業方向：組合數學與圖論
• 任職院校：河南師範大學數學與信息科學學院

個人經歷

2007-2010年，新疆大學數學學院跟隨孟吉翔教授讀碩士，研究方向運籌學與控制論，獲理學碩士學位；

2010-2013年，在南開大學組合數學中心跟隨李學良教授讀博士，研究方向圖論與組合最最佳化，獲理學博士學位；

2013.6，南開大學博士畢業，到河南師範大學任教。

研究方向

組合數學與圖論：圖的樹連通度，圖的彩虹連通性，圖的連通控制數等。

學術成果

學術論文

1.Hengzhe Li, Xueliang Li, Yingbin Ma, The vertex-rainbow connection number of some graph operations, Discussiones Mathematicae - Graph Theory, In press.

2.Hengzhe Li, Yuanyuan Lu, Jiajia Wang, The Generalized 3-connectivity of Cartesian Product of Complete Graphs, Advances in Applied Mathematics

3.Yan Zhao, Lily Chen, Hengzhe Li, On tight bounds for the k-forcing number of a graph. Bull. Bulletin of the Malaysian Mathematical Sciences Society.

4.Hengzhe Li, Baoyindureng Wu, Weihua Yang, Making a dominating set of a graph connected，Discussiones Mathematicae - Graph Theory.

5.Hengzhe Li, Baoyindureng Wu, Jixiang Meng, Yingbin Ma, Steiner tree packing number and tree connectivity. Discrete Mathematics.

6.Hengzhe Li, Jiajia Wang, The λ3-connectivity and κ3-connectivity of recursive circulants. Applied Mathematics and Computation.

7.Zhao Wang, Yaping Mao, Hengzhe Li, Chengfu Ye, On the Steiner 4-Diameter of Graphs. Journal of Interconnection Networks.

8.Hengzhe Li, Yingbin Ma, Rainbow connection number and graph operations, Discrete Appl. Math.

9.Yingbin Ma, Lily Chen, Hengzhe Li, Haifeng Li, The Proper (Vertex) Connection Numbers of Cubic Graphs, Utliltas Mathematica.

10.Hengzhe Li, Xueliang Li, Yuefang Sun, Rainbow Connection Number of Graphs with Diameter Discussiones Mathematicae - Graph Theory.

11.Hengzhe Li, Yingbin Ma, Weihua Yang, Yifei Wang, The generalized 3-connectivity of graph products，Applied Mathematics and Computation.

12.Yaping Mao, Chengfu Ye, Hengzhe Li, Shumin Zhang, The chromatic equivalence class of graph ψ3n(n−3,1), Ars Combin.

13.Yingbin Ma, Lily Chen, Hengzhe Li, Graphs with small total rainbow connection number. Front. Math.China.

14.Hengzhe Li ,Yuxing Yang, Baoyindureng Wu, 2-Edge connected dominating sets and 2-Connected dominating sets of a graph，Journal of Combinatorial Optimization.

15.Yingbin Ma, Lily Chen, Hengzhe Li, Haifeng Li，The total rainbow connection numbers of cubic graphs, Utilitas Mathematica.

16.Xingchao Deng, Hengzhe Li, Guiying Yan，Algorithm on rainbow connection for maximal outerplanar graphs, Theoretical Computer Science.

17.Weihua Yang, Hengzhe Li, Weihua He, Edge-fault-tolerant bipancyclicity of Cayley graphs generated by transposition-generating trees，International Journal of Computer Mathematics

18.Hengzhe Li, Xueliang Li, Yaping Mao, Jun Yue, Note on the spanning-tree packing number of lexicographic product graphs, Discrete Mathematics.

19.Hengzhe Li, Weihua Yang, Jixiang Meng, A kind of conditional vertex connectivity of recursive circulants，Ars Combinatoria.

20.Hengzhe Li, Xueliang Li, Yuefang Sun, Yan Zhao, Note on minimally d-rainbow connected graphs，Graphs and Combinatorics.

21.Hengzhe Li, Xueliang Li, Yaping Mao, Yuefang Sun，Note on the generalized connectivity，Ars Combinatoria.

22.Hengzhe Li, Xueliang Li, Yaping Mao, On extremal graphs with at most two internally disjoint Steiner trees connecting any three vertices，Bulletin of the Malaysian Mathematical Sciences Society

23.Xiaolong Huang, Hengzhe Li, Xueliang Li, Yuefang Sun, Oriented diameter and rainbow connection number of a graph，Discrete Mathematics and Theoretical Computer Science

24.Weihua Yang, Yingzhi Tian, Hengzhe Li, Hao Li, Xiaofeng Guo, Theminimum restricted edge-connected graph and the minimum size of graphs with a given edge-degree, Discrete Applied Mathematics

25.Hengzhe Li , Xueliang Li and Sujuan Liu, Rainbow connection of graphs with diameter 2, Discrete Mathematics

26.Hengzhe Li , Weihua Yang and Jixiang Meng, Fault-tolerant Hamiltonian laceability of Cayley graphs generated by transposition trees, Discrete Mathematics

27.Hengzhe Li, Xueliang Li and Yuefang Sun, The generalized 3-connectivity of Cartesian product graphs, Discrete Mathematics and Theoretical Computer Science

28.Hengzhe Li, Jixiang Meng and Weihua Yang,.3-extraconnectivity of Cayley graphs generated by transposition generating trees, Journal of Xinjiang University

29.Hengzhe Li , Xueliang Li and Sujuan Liu,The (strong) rainbow connection numbers of Cayley graphs on Abelian groups, Computers and Mathematics with Applications

30.Weihua Yang, Hengzhe Li and Xiaofeng Guo, A kind of conditional fault tolerance of (n,k)-star graph, Information Processing Letters

31.Weihua Yang, Hengzhe Li and Jixiang Meng, Conditional connectivity of Cayley graphs generated by transposition trees, Information Processing Letters

在研項目

1.國家自然科學基金青年基金，強度大於2的混合正交表的構造及其套用，參與

2.國家自然科學基金青年基金，關於傳遞圖的全彩虹連通數的研究，參與

完成項目

1.國家自然科學基金青年基金，1關於彩虹連通數和傳統圖參數關係的研究，主持

2.河南省教育廳，關於2-（邊）連通控制數的研究，主持

3.國家自然科學基金天元基金，關於點傳遞圖的彩虹連通數的研究，參與

4.國家自然科學基金天元基金，壓縮感知中正交匹配追蹤算法的理論研究，參與

主講課程

主講本科生課程高等數學、C語言和多媒體課件製作，

主講研究生課程離散數學、圖論、組合論、和組合最最佳化。

榮譽獎項

2016 校青年骨幹教師