研究领域

本人的研究方向主要是极值图论与图谱理论, 具体分为如下三个方面:

图的特征值与图结构、稳定性、饱和性问题。

退化类Turan问题, 得到某些典型的退化图类的Turan函数的精细估计。

极值组合学中的关于集合族的相交性问题, 例如: EKR型定理。


教育背景

本科,湖南师范大学,2012-2016

硕士,中南大学,2016-2019

博士,湖南大学,2019-2023

博士后,中南大学,2023-2025


荣誉奖励

在2018年,获硕士研究生“国家奖学金”

在2021年,获博士研究生“国家奖学金”

在2022年,获湖南大学“校长奖学金”


论文发表

1. Yongtao Li, Yuejian Peng, Refinement on spectral Turan's theorem, SIAM J. Discrete Mathematics 37 (4) (2023) 2462-2485.

2. Yongtao Li, Lu Lu, Yuejian Peng, A spectral Erdos-Rademacher theorem, Advances in Applied Mathematics 158 (2024), No. 102720.

3. Yongtao Li, Lihua Feng, Yuejian Peng, A spectral Erdos-Faudree-Rousseau theorem, Journal of Graph Theory (2025), 1-18

4. Yongjiang Wu, Lihua Feng, Yongtao Li*, Proof of Frankl's conjecture on cross-intersecting families, Journal of Combinatorial Theory, Series A 216 (2025), No. 106062.

5. Yongtao Li, Lihua Feng, Yuejian Peng, Spectral supersaturation: Triangles and bowties, European Journal of Combinatorics 128 (2025), No. 104171.

6. Yongjiang Wu, Lihua Feng, Yongtao Li*, A result for hemi-bundled cross-intersecting families, Advances in Applied Mathematics 169 (2025), No. 102912.

7. Yongtao Li, Lihua Feng, Yuejian Peng, A spectral Lovasz-Simonovits theorem, (2024), submitted.

8. Yongtao Li, Hong Liu, Shengtong Zhang, More on Nosal's spectral theorem: Books and 4-cycles, (2024), submitted.

9. Yongtao Li, Hong Liu, Shengtong Zhang, An edge-spectral Erdos--Stone--Simonovits theorem and its stability, (2025), submitted.