Topic: Spectra of Graphs

Ordering and Multiplicity of Adjacency Eigenvalues

Irreducible Nonnegative Matrices and Graph Connectivity

Hypercube Eigenvalues from Tensor Products

Hoffman Bound for Independent Sets

Hoffman Bounds on Cycles and Hypercubes

Hoffman Bound for Chromatic Number

Equitable Partitions and Quotient Spectra

Eigenvalues of Path Graphs

Eigenvalues of Cycle Graphs

Cycle Multiplicities and Spectral Examples