成果/Result
- Maximum degree and spectral radius of graphs in terms of size被引量：25收藏
- 作者：Wang, Zhiwen Guo, Ji-Ming
- 机构： School of Mathematical Sciences; Department of Mathematics
- 来源：arXiv 2022
- 关键词：Graph theory - Laplace transforms - Machine learning
- No graph with nullity η(G) = |V(G)|-2m(G)+2c(G)-1被引量：18收藏
- 作者：Li, Xin Guo, Ji-Ming
- 机构：East China Univ Sci & Technol
- 来源：DISCRETE APPLIED MATHEMATICS 2019
- 关键词：Adjacency matrix EIgenvalue Nullity Graph
- On the rank (nullity) of a connected graph?被引量：17收藏
- 作者：Wang, Zhi-Wen Guo, Ji-Ming
- 机构： Department of Mathematics
- 来源：arXiv 2019
- 关键词：EIgenvalues and EIgenfunctions
- The spectral radius of graphs with fractional matching number被引量：16收藏
- 作者：Chen, Qian-Qian Guo, Ji-Ming
- 机构： Department of Mathematics
- 来源：arXiv 2023
- 关键词：Matrix algebra
- Bounding the sum of powers of normalized Laplacian EIgenvalues of a graph被引量：15收藏
- 作者：Li, Jianxi Guo, Ji-Ming Shiu, Wai Chee Altindag, S. Burcu Bozkurt Bozkurt, Durmus
- 机构：Minnan Normal Univ;East China Univ Sci & Technol;Hong Kong Baptist Univ;Selcuk Univ
- 来源：APPLIED MATHEMATICS AND COMPUTATION 2018
- 关键词：Normalized Laplacian EIgenvalue Bound
- An edge-separating theorem on the second smallest normalized Laplacian EIgenvalue of a graph and its applications被引量：14收藏
- 作者：Li, Jianxi Guo, Ji-Ming Shiu, Wai Chee Chang, An
- 机构：Minnan Normal Univ;Fuzhou Univ;E China Univ Sci & Technol;Hong Kong Baptist Univ
- 来源：DISCRETE APPLIED MATHEMATICS 2014
- 关键词：Second smallest normalized Laplacian EIgenvalue Edge-separating Tree Unicyclic graph
- A sharp upper bound of the nullity of a connected graph in terms of order and maximum degree被引量：11收藏
- 作者：Wang, Zhi-Wen Guo, Ji-Ming
- 机构：East China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2020
- 关键词：Rank Nullity Graph
- Six classes of trees with largest normalized algebraic connectivity被引量：9收藏
- 作者：Li, Jianxi Guo, Ji-Ming Shiu, Wai Chee Chang, An
- 机构：Minnan Normal Univ;Fuzhou Univ;E China Univ Sci & Technol;Hong Kong Baptist Univ
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2014
- 关键词：Normalized algebraic connectivity Tree
- Some upper bounds on the spectral radius of a graph被引量：6收藏
- 作者：Wang, Zhi-Wen Guo, Ji-Ming
- 机构：East China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2020
- 关键词：Spectral radius Coalescence Contract
- A note on the upper bounds for the Laplacian spectral radius of graphs被引量：6收藏
- 作者：Guo, Ji-Ming Li, Jianxi Shiu, Wai Chee
- 机构：E China Univ Sci & Technol;Minnan Normal Univ;Hong Kong Baptist Univ
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2013
- 关键词：Graph Laplacian spectral radius Upper bound EIgenvector
- A sharp lower bound of the spectral radius with application to the energy of a graph被引量：4收藏
- 作者：Guo, Ji-Ming Yu, Meng-Ni
- 机构：East China Univ Sci & Technol
- 来源：DISCRETE APPLIED MATHEMATICS 2021
- 关键词：Spectral radius Energy Lower bound Graph
- The smallest signless Laplacian spectral radius of graphs with a given clique number被引量：3收藏
- 作者：Zhang, Jing-Ming Huang, Ting-Zhu Guo, Ji-Ming
- 机构：Univ Elect Sci & Technol China;China Univ Petr;E China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2013
- 关键词：Signless Laplacian spectral radius Clique number Signless Laplacian characteristic polynomial
- The rank of a signed graph被引量：3收藏
- 作者：Chen, Qian-Qian Guo, Ji-Ming
- 机构：East China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2022
- 关键词：Signed graph Matching number Fractional matching number Nonsingular
- Maximizing the least signless Laplacian EIgenvalue of unicyclic graphs被引量：2收藏
- 作者：Guo, Ji-Ming Ren, Ji-Yun Shi, Jin-Song
- 机构：East China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2017
- 关键词：Signless Laplacian matrix Signless Laplacian characteristic polynomial The least signless Laplacian EIgenvalue EIgenvector
- The effect on EIgenvalues of connected graphs by adding edges被引量：2收藏
- 作者：Guo, Ji-Ming Tong, Pan-Pan Li, Jianxi Shiu, Wai Chee Wang, Zhi-Wen
- 机构：East China Univ Sci & Technol;Minnan Normal Univ;Hong Kong Baptist Univ
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2018
- 关键词：Graph EIgenvalue Adding an edge Energy
- The extremal spectral radius of generalized block graphs被引量：1收藏
- 作者：Ji, Xue Guo, Ji -Ming Wang, Zhiwen
- 机构：East China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2024
- 关键词：Block graphs Generalized block graphs Spectral radius
- The effect on the spectral radius by attaching a pendant starlike tree被引量：1收藏
- 作者：Li, Xin Guo, Ji-Ming
- 机构：Chuzhou Univ;East China Univ Sci & Technol
- 来源：APPLIED MATHEMATICS AND COMPUTATION 2024
- 关键词：Starlike tree Spectral radius Order
- Bounds of nullity for complex unit gain graphs被引量：1收藏
- 作者：Chen, Qian-Qian Guo, Ji-Ming
- 机构：Yancheng Teachers Univ;East China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2024
- 关键词：Complex unit gain graph EIgenvalue Nullity Block
- Note on the kth Laplacian EIgenvalues of trees with perfect matchings被引量：1收藏
- 作者：Yuan, Xi-Ying Guo, Ji-Ming
- 机构：Shanghai Univ;E China Univ Sci & Technol
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2015
- 关键词：Tree Perfect matching kth Laplacian EIgenvalue
- Corrigendum to "The effect on EIgenvalues of connected graphs by adding edges" [Linear Algebra Appl. 548 (2018) 57–65] (S0024379518300739) (10.1016/j.laa.2018.02.012))被引量：1收藏
- 作者：Guo, Ji-Ming Wang, Zhi-Wen Li, Jianxi Shiu, Wai Chee Tong, Pan-Pan
- 机构： Department of Mathematics; Department of Mathematics & Information Science; Department of Mathematics
- 来源：Linear Algebra and Its Applications 2018
- 关键词：Graph theory
- Nordhaus-Gaddum type inequality for the integer k-matching number of a graph?被引量：0收藏
- 作者：Chen, Qian-Qian Guo, Ji-Ming
- 机构：East China Univ Sci & Technol
- 来源：DISCRETE APPLIED MATHEMATICS 2023
- 关键词：Graph Nordhaus-Gaddum type inequality Integer k-matching number
- The second largest algebraic connectivity of trees with fixed diameter被引量：0收藏
- 作者：Yang, Yi-Chen Guo, Ji-Ming
- 机构：East China Univ Sci & Technol
- 来源：COMPUTATIONAL & APPLIED MATHEMATICS 2026
- 关键词：Laplacian matrix Algebraic connectivity Tree Diameter
- The second smallest normalized Laplacian EIgenvalue of unicyclic graphs被引量：0收藏
- 作者：Guo, Ji-Ming Liu, Enying Li, Jianxi Shiu, Wai Chee
- 机构：East China Univ Sci & Technol;Minnan Normal Univ;Hong Kong Baptist Univ
- 来源：COMPUTATIONAL & APPLIED MATHEMATICS 2024
- 关键词：Normalized Laplacian matrix Normalized Laplacian EIgenvalue Unicyclic graph Characteristic polynomial
- Improved upper bound of multiplicity of (signless) Laplacian EIgenvalue two被引量：0收藏
- 作者：Li, Xueying Guo, Ji-Ming Tian, Fenglei Wang, Zhiwen
- 机构：East China Univ Sci & Technol;Qufu Normal Univ
- 来源：LINEAR ALGEBRA AND ITS APPLICATIONS 2026
- 关键词：Multiplicity of EIgenvalues Even cycles Graph transformation
- The algebraic connectivity of graphs with given induced matching number被引量：0收藏
- 作者：Guo, Ji-Ming Huang, Li-Ting Wang, Zhiwen
- 机构：East China Univ Sci & Technol
- 来源：COMPUTATIONAL & APPLIED MATHEMATICS 2025
- 关键词：Graph Tree Algebraic connectivity Induced matching number
