姓名：王狄建

职称：副教授

办公室：A4-213

办公电话：85070702

E-mail：dijianwang0121@163.com

个人简介(更新至2026年3月)：

王狄建，男，理学博士，副教授、硕士生导师。研究方向为代数图论以及相关应用。已在Discrete Mathematic、Discrete Applied Mathematics、Linear Algebra and its Applications、Electronic Journal of Linear Algebra等期刊发表SCI检索论文多篇。主持1项国家基金青年项目，1项浙江省级项目。具体情况如下：

一、主要科研项目

1. 国家自然科学基金青年项目，12101557 ，符号图的谱与等距线问题 ，2022/01-2024/12，结题。

2. 浙江省自然科学基金一般项目: LY21A010004，符号图谱中两类问题的研究, 2021/01-2023/12， 结题。

二、近期论文

1. Dijian Wang, Kai Peng, Yaoping Hou, On the maximal index of unbalanced signed graphs with a prescribed number of edges, Discrete Mathematics, 349 (2026) 114871.

2. Dijian Wang, Yaoping Hou, The minimum spectral radius for K_r+1-saturated graphs with r = 4, 5, Discrete Mathematics, 347 (2024) 114110.

3. Dijian Wang, Yaoping Hou, Deqiong Li, Extremal results for C3−-free signed graphs, Linear Algebra and its Applications 681 (2024) 47–65.

4. Dijian Wang, Wenkuan Dong, Yaoping Hou, Deqiong Li, On signed graphs whose spectral radius does not exceed  \sqrt{2+\sqrt{5}}, Discrete Mathematics, 346 (2023) 113358.

5. Dijian Wang, Yaoping Hou, Deqiong Li, Signed Graphs with All But Two Eigenvalues Equal to \pm 1, Graphs and Combinatorics (2023) 39:87.

6. Dijian Wang, Dondong Gao, Laplacian integral signed graphs with few cycles, AIMS Mathematics, 8(3) (2023) 7021-7031.

7. Dijian Wang, Yaoping Hou, The extremal spectral radii of the arithmetical structures on paths, Discrete Mathematics, 344 (2021) 112259.

8. Dijian Wang, Yaoping Hou, Laplacian integral subcubic signed graphs, Electronic Journal of Linear Algebra, 37 (2021) 163-176.

9. Dijian Wang, Yaoping Hou, Integral signed subcubic graphs, Linear Algebra and its Applications, 593 (2020) 29-44.

10. Dijian Wang, Yaoping Hou, Bicyclic signed graphs with at most one odd cycle and maximal energy, Discrete Applied Mathematics, 60 (2019) 244-255.

11. Yaoping Hou, Zikai Tang, Dijian Wang, On signed graphs with just two distinct adjacency eigenvalues, Discrete Mathematics, 342 (2019) 111615.

12. Yaoping Hou, Zikai Tang, Dijian Wang, On signed graphs with just two distinct Laplacian eigenvalues, Applied Mathematics and Computation, 351 (2019) 1-7.

13. Dijian Wang, Yaoping Hou, On the sum of Laplacian eigenvalues of a signed graph, Linear Algebra and its Applications, 555 (2018) 39-52.  

三、硕士研究生

在读：

2023级 彭凯；2024级 刘启；2025级 高扬、姜亚兰

四、团队主要成员

龚世才、胡晓雪、孙少伟、袁博君、田静、郑璐、梁丽

五、研究生招生

依托于龚世才教授为负责人的浙科图论团队，开展团队共同培养研究生的模式，团队学术氛围良好，欢迎报考我们团队的硕士研究生（学硕、专硕）。