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许怡安
副教授
tyc522cc太阳成集团,硕士生导师
系统科学系
电话:
邮箱:
yian_xu@seu.edu.cn
地址:
太阳集团城九龙湖校区
邮编:
211189
  • 许怡安,女,2012年本科毕业于南京师范大学数学科学学院,2014年获得Simon Fraser University数学硕士学位,2019年1月获得The University of Western Australia数学博士学位。研究方向为图论,包括结构图论,拓扑图论及代数图论。
    2019.05至今, tyc522cc太阳成集团
  • 1.      Yian Xu. Non-perfect (P_5, C_5, K_5  e)-Free Graphs are 5-Colorable. Graphs and Combinatorics, 2025, 41:3.

    2.       Yian Xu. The Chromatic Number of (P5, HVN)-free Graphs. Acta Mathematicae Applicatae Sinica, English Series. 2024, 40, 1098-1110.

    3.       Di Wu, Baogang Xu, Yian Xu*. The Chromatic Number of Heptagraphs. Journal of Graph Theory. 2024, 106, 711-736.

    4.       Yian Xu. Coloring graphs without induced P_5 or K_5-e. Applied Mathematics and Computation. 2024, 461, 128314.

    5.       Wei Dong, Baogang Xu, Yian Xu*. A Tight Linear Bound to the Chromatic Number of (P_5, K_1 + (K_1\cup K_3))-Free Graphs. Graphs and Combinatorics. 39 (No. 43), 2023.

    6.    Yian Xu. On the structure of pentagraphs. Applied Mathematics and Computation. 2022, 439, 127632. 

    7.     Wei Dong, Baogang Xu, Yian Xu*. On the chromatic number of some P_5-free graphs. Discrete Mathematics. 2022, 345, 113004.

    8.      吴狄 许宝刚 许怡安, 围长 2+ 1 且无长奇洞图的染色问题. 中国科学:数学, 2023,第53卷,第1期: 103-120.

    9.      Yian Xu. Normal and non-normal Cayley graphs for symmetric groups. Discrete Mathematics. 2022, 345, 112834.  

    10.    Yian Xu. A better upper bound on the chromatic number of (cap, even-hole)-free graphs. Discrete Mathematics. 2021, 344, 112581.

    11.     Yian Xu. A new upper bound for Conway's thrackles. Applied Mathematics and Computation. 2021, 389, 125573.  

    12.   Michael Giudici, Caiheng Li, and Yian Xu*. Constructing 2-arc-transitive covers of hypercubes. Graphs and Combinatorics. 2019, 35, 973–987.     

    13.   Yian Xu. On constructing normal and non-normal Cayley graphs. Discrete Mathematics. 2017, 340(12), 2972–2977.      

    14.   Luis Goddyn and Yian  Xu*. On the bounds of Conway’s thrackles. Discrete & Computational Geometry. 2017, 58(2), 410–416.     






  • 科研:


    主持江苏省自然科学基金青年项目


    主持国家自然科学基金青年项目


    入选2020年江苏省双创博士人才项目


    教学:


    太阳集团城青年教师授课竞赛三等奖