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Graphs with Few Eigenvalues

Acknowledgements第7-8页
Abstract第8-9页
1 Introduction第12-24页
    1.1 Graphs with few eigenvalues第14-19页
        1.1.1 Graphs with few A-eigenvalues第14-16页
        1.1.2 Graphs with few S-eigenvalues第16-17页
        1.1.3 Graphs with few generalized adjacency eigenvalues第17-18页
        1.1.4 Graphs with few D-eigenvalues第18页
        1.1.5 Other matrices第18-19页
    1.2 Spectral characterization of graphs第19-22页
        1.2.1 Adjacency matrix第19-20页
        1.2.2 Seidel, Laplacian and signless Laplacian matrices第20页
        1.2.3 Computer results第20-21页
        1.2.4 Cospectrality and generalized adjacency matrices第21-22页
        1.2.5 Distance matrix第22页
    1.3 Summary of the main results第22-24页
2 Preliminaries第24-32页
    2.1 Graphs第24-25页
    2.2 Matrices第25-27页
    2.3 Interlacing and equitable partitions第27-29页
    2.4 Generalized adjacency matrices第29-32页
        2.4.1 Graphs with two generalized adjacency eigenvalues第29-32页
3 Graphs with few main and plain A-eigenvalues第32-52页
    3.1 The main-plain index and the refined spectrum第32-34页
    3.2 Graphs with few main A-eigenvalues第34-44页
        3.2.1 Introduction第34-36页
        3.2.2 Equitable graphs第36-38页
        3.2.3 Graphs with two S-eigenvalues第38-41页
        3.2.4 Constructions第41-44页
    3.3 Graphs with few main and plain A-eigenvalues第44-52页
        3.3.1 Introduction第44-45页
        3.3.2 Characterizations第45-47页
        3.3.3 Examples and discussion第47-52页
4 Graph with three generalized adjacency eigenvalues第52-60页
    4.1 Introduction第52-53页
    4.2 Regular two-graphs第53-55页
    4.3 Cones over strongly regular graphs第55-57页
    4.4 Constructions第57-60页
5 Distance spectra of graphs第60-68页
    5.1 Introduction第60-61页
    5.2 Bounds on D-eigenvalues of graphs第61-63页
    5.3 Graphs with three D-eigenvalues第63-65页
    5.4 Distance spectral characterization of hypercubes第65-68页
6 Future work第68-72页
    6.1 Adjacency matrix第68-69页
    6.2 Seidel matrix第69-70页
    6.3 Generalized adjacency matrices第70页
    6.4 Distance matrix第70-72页
References第72-78页
Research work conducted during PhD第78页

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