所在单位:数学与统计学院
学历:博士研究生(硕博连读)
办公地点:详细信息见学院版个人主页https://maths.snnu.edu.cn/info/1022/11944.htm
性别:男
学位:理学博士学位
在职信息:在职
个人简介:
李希赫,陕西师范大学数学与统计学院讲师,硕士生导师,荷兰特文特大学(University of Twente)博士,西北工业大学博士,中国科学技术大学博士后。研究方向为图论与组合数学,主要包括Ramsey理论和极值图论,相关成果发表在《Canadian Journal of Mathematics》、《Journal of Graph Theory》、《The Electronic Journal of Combinatorics》等学术期刊。现主持国家自然科学基金青年项目1项,参与国家重点研发计划1项。2020年起担任美国数学会Mathematical Reviews评论员。
个人履历:
2024.07-至今:陕西师范大学,讲师
2022.07-2024.06:中国科学技术大学,博士后(合作导师:马杰教授)
2017.09-2022.06:西北工业大学,博士(直博)(2022年6月获理学博士学位,导师:王力工教授)
2019.10-2021.10:荷兰特文特大学(University of Twente),博士(联合培养)(2021年10月获数学博士学位,导师:Hajo Broersma教授、王力工教授)
2013.09-2017.06:西北工业大学,本科
研究兴趣:
图论及其应用、组合数学 (主要包括Ramsey理论、极值图论、加性组合学、极值组合)
代表性学术论文:
[1] Xihe Li, Jie Ma, Zhiheng Zheng, On the multicolor Turán conjecture for color-critical graphs, Canadian Journal of Mathematics, (2025), online. https://doi.org/10.4153/S0008414X25101521
[2] Xihe Li, Yuchang Wang, Zhiheng Zheng, Edge-disjoint Hamilton cycles in the McKay-Miller-Širáň graphs, Discrete Applied Mathematics, 379 (2026), 727-735.
[3] Xihe Li, Jie Ma, Tianying Xie. Weak rainbow saturation numbers of graphs. Journal of Graph Theory, 109(1) (2025), 35-42.
[4] Xihe Li, Hajo Broersma, Ligong Wang, Growth rates of the bipartite Erdős-Gyárfás function, Journal of Graph Theory, 107(3) (2024), 597-628.
[5] Xihe Li, Hajo Broersma, Ligong Wang, The Erdős-Gyárfás function with respect to Gallai-colorings, Journal of Graph Theory, 101(2) (2022), 242-264.
[6] Xihe Li, Hajo Broersma, Ligong Wang, Integer colorings with no rainbow 3-term arithmetic progression, Electronic Journal of Combinatorics, 29(2) (2022), Paper No.2.28, 15 pp.
[7] Xihe Li, Ligong Wang, Gallai-Ramsey numbers for rainbow $S_3^+$ and monochromatic paths, Discussiones Mathematicae Graph Theory, 42(2) (2022), 349-362.
[8] Xihe Li, Hajo Broersma, Ligong Wang, Extremal problems and results related to Gallai-colorings, Discrete Mathematics, 344(111) (2021), 112567.
[9] Xihe Li, Ligong Wang, Monochromatic stars in rainbow $K_3$-free and $S_3^+$-free colorings, Discrete Mathematics, 343(12) (2020), 112131.
[10] Xihe Li, Ligong Wang, Forbidden rainbow subgraphs that force large monochromatic or multicolored k-connected subgraphs, Discrete Applied Mathematics, 285 (2020), 18-29.
[11] Xihe Li, Ligong Wang, Gallai-Ramsey numbers for a class of graphs with five vertices, Graphs and Combinatorics, 36(6) (2020), 1603-1618.
[12] Xihe Li, Pierre Besse, Colton Magnant, Ligong Wang, Noah Watts, Gallai-Ramsey numbers for rainbow paths,Graphs and Combinatorics, 36(4) (2020), 1163-1175.
[13] Xihe Li, Ligong Wang, Deficiency and forbidden subgraphs of connected, locally-connected graphs, Discussiones Mathematicae Graph Theory, 40 (1) (2020), 195-208.
[14] Xihe Li, Ligong Wang, Xiangxiang Liu, Complete graphs and complete bipartite graphs without rainbow path, Discrete Mathematics, 342(7) (2019), 2116-2126.
[15] Xihe Li, Ligong Wang, Shangyuan Zhang, The signless Laplacian spectral radius of some strongly connected digraphs, Indian Journal of Pure and Applied Mathematics, 49(1) (2018), 113-127.
[16] Xihe Li, Zhihui Li, Xiangxiang Liu, Ligong Wang, Monochromatic tree covers in nearly complete graphs and complete bipartite graphs, Acta Mathematicae Applicatae Sinica (English Series), (2025), to appear.
[17] Xihe Li, Runshan Wang, Edge-colored 3-uniform hypergraphs without rainbow paths of length 3 and its applications to Ramsey theory, (2025), submitted. (与本科生合作完成)
[18] Xihe Li, Xiangxiang Liu, Constrained Ramsey numbers for rainbow $P_5$, (2025), submitted.
科研项目:
1. Ramsey理论中Erdős-Gyárfás问题的研究,国家自然科学基金青年科学基金项目,起止年月:2026.01-2028.12,主持.
2. 超图顶点划分问题和Ramsey问题的研究,中国科学技术大学青年创新基金,起止年月:2024.01-2025.12,主持.
3. 极值图论若干前沿问题的研究,国家重点研发计划,起止年月:2023.12-2028.11,参与.
4. 基于图论的网络拓扑研究,华为技术有限公司-中国科学技术大学合作项目,起止时间:2023.10-2024.09,参与.
5. 有向图与符号有向图的谱理论研究,国家自然科学基金面上项目,起止时间:2019.01-2022.12,参与.
学术报告:
1. 2025年图论青年学术论坛,开封,2025.07.
报告题目:Monochromatic tree covers in nearly complete (bipartite) graphs.
2. 第十五届西安图论与组合数学研讨会,汉中,2025.05.
报告题目:Growth rates of the bipartite Erdős-Gyárfás function.
3. 2025年山东大学“图论与组合数学”青年论坛,济南,2025.04.
报告题目:Growth rates of the bipartite Erdős-Gyárfás function.
4. 第十一届全国组合数学与图论大会,青岛,2024.09.
报告题目:On the multicolor Turán conjecture for color-critical graphs.
5. 2024年延安大学图论及其应用研讨会,延安,2024.08.
报告题目:Weak rainbow saturation numbers of graphs.
6. The 8th Xi'an International Workshop on Graph Theory and Combinatorics,西安,2024.06.
报告题目:On a conjecture of Keevash-Saks-Sudakov-Verstraëte on multicolor Turán numbers.
7. 华为-中科大计算网络创新实验室2024年未来网络前沿技术研讨,合肥,2024.04.
报告题目:Weak rainbow saturation numbers of graphs.
8. 中国运筹学会图论组合分会2022学术年会暨第九届图论与组合算法国际研讨会,杭州,2022.07.
报告题目:Recent progress on the Erdős-Gyárfás problem.
9. The 6th Xi'an International Workshop on Graph Theory and Combinatorics,西安,2022.06.
报告题目:Problems and results on the Erdős-Gyárfás problem.
10. 2019年染色图理论研讨会,天津,2019.07.
报告题目:Complete graphs and complete bipartite graphs without rainbow path.
11. 第八届全国组合数学与图论大会,合肥,2018.08.
报告题目:Some new results of Gallai-Ramsey theory.
12. 第九届海峡两岸图论与组合数学会议,福州,2017.11.
报告题目:Deficiency and forbidden subgraphs of connected, locally-connected graphs.
讲授课程:
1. 高等数学
2. 射影几何
联系方式: xiheli@snnu.edu.cn
文津楼3227
(数据截止至2025年11月22日)