於桂海，理學博士，副教授，碩士生導師，南開大學博士後。主要從事複雜網路、圖論及其套用、矩陣分析方面的研究工作。共發表學術論文50餘篇，其中SCI收錄40餘篇。主持國家自然基金一項，主持中國博士後基金特別資助項目一項，主持中國博士後基金面上項目一項，主持省自然基金一項，主持山東省優秀中青年科學家基金一項，參與國家基金三項，參與省基金五項，獲得山東省高校學校優秀科研成果獎三等獎1項（獨立完成）。先後應邀到德國、奧地利、香港、澳門進行學術交流與合作,與國外（包括美國、德國、塞爾維亞、奧地利等）、國內學者建立了合作關係，併合作完成學術論文8篇。
基本介紹
- 中文名：於桂海
- 外文名：Guihai Yu
- 畢業院校：南開大學
- 代表作品：Principal minor version of Matrix-Tree theorem for mixedgraphs
- 主要成就：合作完成學術論文8篇
- 職稱：副教授
科研項目,科研獲獎,發表論文,
科研項目
1.國家自然科學基金， 圖的結構與特徵值的相關問題（11301302），主持
2.中國博士後基金特別資助，圖的特徵值的相關問題與極值圖論（2014T70210），主持
3.中國博士後基金面上項目，圖的特徵值的相關問題的研究（2013M520869），主持
4.山東省優秀中青年科學家獎勵基金，圖的慣性指數的相關問題的研究（BS2013SF009），主持
5.山東省自然科學基金，基於eccentricity的圖不變數的研究（ZR2011AQ005），主持
科研獲獎
1.山東省優秀科研成果獎三等獎 獨立完成
發表論文
23.Guihai Yu,HuiQu, Matthias Dehmer, Principal minor version of Matrix-Tree theorem for mixedgraphs, Applied Mathematics and Computation, 309 (2017) 27--30.(SCI)
22.GuihaiYu,,Xin Liu,HuiQu, Singularity of Hermitian (quasi-)Laplacianmatrix of mixedgraphs.Appl. Math. Comput.293(2017)287–292.(SCI)
21.GuihaiYu,Lihua Feng, Aleksandar Ilic, The largest n-1 Hossoyaindices of unicyclic graphs, Filomat, 30(9)2016.(SCI)
20.GuihaiYu,Lihua Feng, Hui Qu, Signed graphs with small positive index of inertia,ElectronicJournal of Linear Algebra, (2016) Vol. 31, pp.232--243.(SCI)
19.Guihai Yu,Lihua Feng, AleksandarIlic, Gragan Stevanovic, The signless spectral radius of bounded degree graphson surfaces,Applicable Analysis and Discrete Mathematics, 9(2015)332--346.(SCI)
18.Guihai Yu,Hui Qu,Hermitian Laplacianmatrix and positive of mixed graphs,Appl.Math. Comput.269 (2015) 70--76.(SCI)
17.Guihai Yu,Hui Qu, Jianhua Tu,Inertia of complex unit gain graphs,Applied Mathematics and Computaion,265 (2015) 619--629.(SCI)
16.Hui Qu,Guihai Yu,Bicyclic oriented graphs with skew-rank 2 or 4,AppliedMathematics and Computation,258(2015) 182--191.(SCI)
15.Hui Qu,Guihai Yu,More on the minimum skew-rank of graphs,operatorsand matrices,9(2)(2015) 311--324.(SCI)
14. Xueliang Li,GuihaiYu, The the skew-rank of oriented graphs (in Chinese),Sci. Sin. Math.45(2015) 93--104.中國科學
13.GuihaiYu, Hui Qu, Lang Tang, Lihua Feng, On the connectiveeccentricity index of trees and unicyclic graphs with given diameter,J. Math. Anal. Appl.420(2014) 1776--1786.(SCI)
12.Guihai Yu, Lihua Feng,Qingwen Wang,A. Ilic,The minimalpositive index of inertia of unicyclic signed graphs,Ars Combinatorica, 117 (2014)245--255.(SCI)
11.GuihaiYu, Xiaodong Zhang, Lihua Feng, The inertia of weighted unicyclic graphs,Linear Algebra Appl.448(2014) 130--152.(SCI)
10.GuihaiYu, Lihua Feng, On connective eccentricity index of graphs,Match-Communications In MathematicalAnd InComputerChemistry69 (2013), 611--628.(SCI)
9.GuihaiYu,Lihua Feng, Qingwen Wang, Bicyclic graphs with small positive index of inertia,Linear Algebra Appl.438 (2013), 2036--2045.(SCI)
8.Guihai Yu,Lihua Feng, Dingguo Wang, On the average eccentricity ofunicyclic graphs,Ars Combinatorica,103(2012) 531--537.(SCI)
7.GuihaiYu, Lihua Feng, Aleksandar Ilić, On the eccentric distance sum of trees andunicyclic graphs,J. Math. Anal. Appl. 375 (2011), 934--944.(SCI)
6.GuihaiYu, Lihua Feng,On the maximal Harary index of a classof bicyclic graphs.Util. Math.82 (2010), 285--292.(SCI)
5.GuihaiYu,Lihua Feng, Aleksandar Ilić,The hyper-Wiener indexof trees with given parameters.Ars Combin.96 (2010), 395--404.(SCI)
4.GuihaiYu,Lihua Feng,Randić index and eigenvalues of graphs.Rocky Mountain J. Math.40 (2010), no. 2, 713--721.(SCI)
3.GuihaiYu,Lihua Feng,On the Wiener index of unicyclic graphswith given girth.Ars Combin.94 (2010), 361--369.(SCI)
2.Guihai Yu;Lihua FengOn the zeroth-order generalRandić index of graphs with given matching number.Recent results in the theory of Randić index,227–233, Math. Chem.Monogr., 6,Univ. Kragujevac, Kragujevac,2008.
1.GuihaiYu,On the maximal signless Laplacian spectral radius ofgraphs with given matching number.Proc. Japan Acad. Ser. A Math. Sci.84 (2008), no. 9, 163--166.(SCI)
